From 2f71dc358b60bfc78d02e079649e361dc64df1bd Mon Sep 17 00:00:00 2001
From: Samuel Cambien <samuelcambien@gmail.com>
Date: Fri, 23 Sep 2022 10:27:27 +0200
Subject: [PATCH] issue #1404, issue #1762, issue #1763 Add support for line
 breaks, markdown and mathjax in metadata

---
 package.json                                  |   3 +
 .../edit-in-place-field.component.html        |   2 +-
 .../metadata-values.component.html            |  19 +-
 .../metadata-values.component.spec.ts         |   2 +-
 .../metadata-values.component.ts              |  19 +-
 ...item-page-abstract-field.component.spec.ts |  16 +-
 .../item-page-abstract-field.component.ts     |   1 +
 .../item-page-field.component.html            |   7 +-
 .../item-page-field.component.spec.ts         |  82 +++++-
 .../item-page-field.component.ts              |   5 +
 src/app/shared/shared.module.ts               |   4 +-
 .../truncatable-part.component.html           |   2 +-
 src/app/shared/utils/markdown.pipe.spec.ts    |  66 +++++
 src/app/shared/utils/markdown.pipe.ts         |  70 +++++
 src/config/app-config.interface.ts            |   2 +
 src/config/default-app-config.ts              |   4 +
 src/environments/environment.test.ts          |   4 +-
 src/styles/_global-styles.scss                |   4 +
 yarn.lock                                     | 277 +++++++++++++++++-
 19 files changed, 562 insertions(+), 27 deletions(-)
 create mode 100644 src/app/shared/utils/markdown.pipe.spec.ts
 create mode 100644 src/app/shared/utils/markdown.pipe.ts

diff --git a/package.json b/package.json
index 278afdf6c3..5c53b41c7f 100644
--- a/package.json
+++ b/package.json
@@ -97,6 +97,8 @@
     "jwt-decode": "^3.1.2",
     "klaro": "^0.7.10",
     "lodash": "^4.17.21",
+    "markdown-it": "^13.0.1",
+    "markdown-it-mathjax3": "^4.3.1",
     "mirador": "^3.3.0",
     "mirador-dl-plugin": "^0.13.0",
     "mirador-share-plugin": "^0.11.0",
@@ -114,6 +116,7 @@
     "postcss-cli": "^8.3.0",
     "reflect-metadata": "^0.1.13",
     "rxjs": "^6.6.3",
+    "sanitize-html": "^2.7.2",
     "sortablejs": "1.13.0",
     "tslib": "^2.0.0",
     "url-parse": "^1.5.3",
diff --git a/src/app/item-page/edit-item-page/item-metadata/edit-in-place-field/edit-in-place-field.component.html b/src/app/item-page/edit-item-page/item-metadata/edit-in-place-field/edit-in-place-field.component.html
index f5543af971..46299c1b08 100644
--- a/src/app/item-page/edit-item-page/item-metadata/edit-in-place-field/edit-in-place-field.component.html
+++ b/src/app/item-page/edit-item-page/item-metadata/edit-in-place-field/edit-in-place-field.component.html
@@ -26,7 +26,7 @@
 <td class="w-100">
     <div class="value-field">
         <div *ngIf="!(editable | async)">
-            <span class="dont-break-out">{{metadata?.value}}</span>
+            <span class="dont-break-out preserve-line-breaks">{{metadata?.value}}</span>
         </div>
         <div *ngIf="(editable | async)" class="field-container">
             <textarea class="form-control" type="textarea" attr.aria-labelledby="fieldValue" [(ngModel)]="metadata.value" [dsDebounce]
diff --git a/src/app/item-page/field-components/metadata-values/metadata-values.component.html b/src/app/item-page/field-components/metadata-values/metadata-values.component.html
index 2dc841bc1b..824265c5c8 100644
--- a/src/app/item-page/field-components/metadata-values/metadata-values.component.html
+++ b/src/app/item-page/field-components/metadata-values/metadata-values.component.html
@@ -1,5 +1,18 @@
 <ds-metadata-field-wrapper [label]="label | translate">
-    <span class="dont-break-out" *ngFor="let mdValue of mdValues; let last=last;">
-        {{mdValue.value}}<span *ngIf="!last" [innerHTML]="separator"></span>
-    </span>
+    <ng-container *ngFor="let mdValue of mdValues; let last=last;">
+      <ng-container *ngTemplateOutlet="(renderMarkdown ? markdown : simple); context: {value: mdValue.value, classes: 'dont-break-out preserve-line-breaks'}">
+      </ng-container>
+      <span class="separator" *ngIf="!last" [innerHTML]="separator"></span>
+    </ng-container>
 </ds-metadata-field-wrapper>
+
+<ng-template #markdown let-value="value" let-classes="classes">
+  <span class="{{classes}}" [innerHTML]="value | dsMarkdown | async">
+  </span>
+</ng-template>
+
+<ng-template #simple let-value="value" let-classes="classes">
+  <span class="{{classes}}">
+    {{value}}
+  </span>
+</ng-template>
diff --git a/src/app/item-page/field-components/metadata-values/metadata-values.component.spec.ts b/src/app/item-page/field-components/metadata-values/metadata-values.component.spec.ts
index bd606ad5a0..cde935fc11 100644
--- a/src/app/item-page/field-components/metadata-values/metadata-values.component.spec.ts
+++ b/src/app/item-page/field-components/metadata-values/metadata-values.component.spec.ts
@@ -58,7 +58,7 @@ describe('MetadataValuesComponent', () => {
   });
 
   it('should contain separators equal to the amount of metadata values minus one', () => {
-    const separators = fixture.debugElement.queryAll(By.css('span>span'));
+    const separators = fixture.debugElement.queryAll(By.css('span.separator'));
     expect(separators.length).toBe(mockMetadata.length - 1);
   });
 
diff --git a/src/app/item-page/field-components/metadata-values/metadata-values.component.ts b/src/app/item-page/field-components/metadata-values/metadata-values.component.ts
index 142b08b360..1773a42bde 100644
--- a/src/app/item-page/field-components/metadata-values/metadata-values.component.ts
+++ b/src/app/item-page/field-components/metadata-values/metadata-values.component.ts
@@ -1,5 +1,6 @@
-import { Component, Input } from '@angular/core';
+import { Component, Input, OnChanges, SimpleChanges } from '@angular/core';
 import { MetadataValue } from '../../../core/shared/metadata.models';
+import { environment } from '../../../../environments/environment';
 
 /**
  * This component renders the configured 'values' into the ds-metadata-field-wrapper component.
@@ -10,7 +11,7 @@ import { MetadataValue } from '../../../core/shared/metadata.models';
   styleUrls: ['./metadata-values.component.scss'],
   templateUrl: './metadata-values.component.html'
 })
-export class MetadataValuesComponent {
+export class MetadataValuesComponent implements OnChanges {
 
   /**
    * The metadata values to display
@@ -27,4 +28,18 @@ export class MetadataValuesComponent {
    */
   @Input() label: string;
 
+  /**
+   * Whether this metadata should be rendered with markdown.
+   */
+  @Input() enableMarkdown = false;
+
+  /**
+   * This variable will be true if this metadata should be rendered with markdown, and if markdown is enabled in the
+   * environment config.
+   */
+  renderMarkdown = false;
+
+  ngOnChanges(changes: SimpleChanges): void {
+    this.renderMarkdown = !!environment.enableMarkdown && this.enableMarkdown;
+  }
 }
diff --git a/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.spec.ts b/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.spec.ts
index 3df1b58011..e03ec39d1a 100644
--- a/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.spec.ts
+++ b/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.spec.ts
@@ -5,6 +5,7 @@ import { ItemPageAbstractFieldComponent } from './item-page-abstract-field.compo
 import { TranslateLoaderMock } from '../../../../../shared/testing/translate-loader.mock';
 import { MetadataValuesComponent } from '../../../../field-components/metadata-values/metadata-values.component';
 import { mockItemWithMetadataFieldAndValue } from '../item-page-field.component.spec';
+import { SharedModule } from '../../../../../shared/shared.module';
 
 let comp: ItemPageAbstractFieldComponent;
 let fixture: ComponentFixture<ItemPageAbstractFieldComponent>;
@@ -15,12 +16,15 @@ const mockValue = 'test value';
 describe('ItemPageAbstractFieldComponent', () => {
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
-      imports: [TranslateModule.forRoot({
-        loader: {
-          provide: TranslateLoader,
-          useClass: TranslateLoaderMock
-        }
-      })],
+      imports: [
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: TranslateLoaderMock
+          }
+        }),
+        SharedModule,
+      ],
       declarations: [ItemPageAbstractFieldComponent, MetadataValuesComponent],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(ItemPageAbstractFieldComponent, {
diff --git a/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.ts b/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.ts
index 00984d6592..958158e6bd 100644
--- a/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.ts
+++ b/src/app/item-page/simple/field-components/specific-field/abstract/item-page-abstract-field.component.ts
@@ -36,4 +36,5 @@ export class ItemPageAbstractFieldComponent extends ItemPageFieldComponent {
      */
     label = 'item.page.abstract';
 
+    enableMarkdown = true;
 }
diff --git a/src/app/item-page/simple/field-components/specific-field/item-page-field.component.html b/src/app/item-page/simple/field-components/specific-field/item-page-field.component.html
index fd3055d197..8b017c77f5 100644
--- a/src/app/item-page/simple/field-components/specific-field/item-page-field.component.html
+++ b/src/app/item-page/simple/field-components/specific-field/item-page-field.component.html
@@ -1,3 +1,8 @@
 <div class="item-page-field">
-  <ds-metadata-values [mdValues]="item?.allMetadata(fields)" [separator]="separator" [label]="label"></ds-metadata-values>
+  <ds-metadata-values
+    [mdValues]="item?.allMetadata(fields)"
+    [separator]="separator"
+    [label]="label"
+    [enableMarkdown]="enableMarkdown"
+  ></ds-metadata-values>
 </div>
diff --git a/src/app/item-page/simple/field-components/specific-field/item-page-field.component.spec.ts b/src/app/item-page/simple/field-components/specific-field/item-page-field.component.spec.ts
index ba94be3e70..cf7c12ebb6 100644
--- a/src/app/item-page/simple/field-components/specific-field/item-page-field.component.spec.ts
+++ b/src/app/item-page/simple/field-components/specific-field/item-page-field.component.spec.ts
@@ -8,9 +8,13 @@ import { MetadataValuesComponent } from '../../../field-components/metadata-valu
 import { MetadataMap, MetadataValue } from '../../../../core/shared/metadata.models';
 import { createSuccessfulRemoteDataObject$ } from '../../../../shared/remote-data.utils';
 import { createPaginatedList } from '../../../../shared/testing/utils.test';
+import { environment } from '../../../../../environments/environment';
+import { MarkdownPipe } from '../../../../shared/utils/markdown.pipe';
+import { SharedModule } from '../../../../shared/shared.module';
 
 let comp: ItemPageFieldComponent;
 let fixture: ComponentFixture<ItemPageFieldComponent>;
+let markdownSpy;
 
 const mockValue = 'test value';
 const mockField = 'dc.test';
@@ -20,17 +24,21 @@ const mockFields = [mockField];
 describe('ItemPageFieldComponent', () => {
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
-      imports: [TranslateModule.forRoot({
-        loader: {
-          provide: TranslateLoader,
-          useClass: TranslateLoaderMock
-        }
-      })],
+      imports: [
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: TranslateLoaderMock
+          }
+        }),
+        SharedModule,
+      ],
       declarations: [ItemPageFieldComponent, MetadataValuesComponent],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(ItemPageFieldComponent, {
       set: { changeDetection: ChangeDetectionStrategy.Default }
     }).compileComponents();
+    markdownSpy = spyOn(MarkdownPipe.prototype, 'transform');
   }));
 
   beforeEach(waitForAsync(() => {
@@ -45,6 +53,68 @@ describe('ItemPageFieldComponent', () => {
   it('should display display the correct metadata value', () => {
     expect(fixture.nativeElement.innerHTML).toContain(mockValue);
   });
+
+  describe('when markdown is disabled in the environment config', () => {
+
+    beforeEach(() => {
+      environment.enableMarkdown = false;
+    });
+
+    describe('and markdown is disabled in this component', () => {
+
+      beforeEach(() => {
+        comp.enableMarkdown = false;
+        fixture.detectChanges();
+      });
+
+      it('should not use the Markdown Pipe', () => {
+        expect(markdownSpy).not.toHaveBeenCalled();
+      });
+    });
+
+    describe('and markdown is enabled in this component', () => {
+
+      beforeEach(() => {
+        comp.enableMarkdown = true;
+        fixture.detectChanges();
+      });
+
+      it('should not use the Markdown Pipe', () => {
+        expect(markdownSpy).not.toHaveBeenCalled();
+      });
+    });
+  });
+
+  describe('when markdown is enabled in the environment config', () => {
+
+    beforeEach(() => {
+      environment.enableMarkdown = true;
+    });
+
+    describe('and markdown is disabled in this component', () => {
+
+      beforeEach(() => {
+        comp.enableMarkdown = false;
+        fixture.detectChanges();
+      });
+
+      it('should not use the Markdown Pipe', () => {
+        expect(markdownSpy).not.toHaveBeenCalled();
+      });
+    });
+
+    describe('and markdown is enabled in this component', () => {
+
+      beforeEach(() => {
+        comp.enableMarkdown = true;
+        fixture.detectChanges();
+      });
+
+      it('should use the Markdown Pipe', () => {
+        expect(markdownSpy).toHaveBeenCalled();
+      });
+    });
+  });
 });
 
 export function mockItemWithMetadataFieldAndValue(field: string, value: string): Item {
diff --git a/src/app/item-page/simple/field-components/specific-field/item-page-field.component.ts b/src/app/item-page/simple/field-components/specific-field/item-page-field.component.ts
index ce2b110efd..f424ff195a 100644
--- a/src/app/item-page/simple/field-components/specific-field/item-page-field.component.ts
+++ b/src/app/item-page/simple/field-components/specific-field/item-page-field.component.ts
@@ -18,6 +18,11 @@ export class ItemPageFieldComponent {
      */
     @Input() item: Item;
 
+    /**
+     * Whether this metadata should be rendered with markdown.
+     */
+    enableMarkdown = false;
+
     /**
      * Fields (schema.element.qualifier) used to render their values.
      */
diff --git a/src/app/shared/shared.module.ts b/src/app/shared/shared.module.ts
index 715ee66a99..f9524ec9dd 100644
--- a/src/app/shared/shared.module.ts
+++ b/src/app/shared/shared.module.ts
@@ -177,6 +177,7 @@ import { ScopeSelectorModalComponent } from './search-form/scope-selector-modal/
 import { BitstreamRequestACopyPageComponent } from './bitstream-request-a-copy-page/bitstream-request-a-copy-page.component';
 import { DsSelectComponent } from './ds-select/ds-select.component';
 import { LogInOidcComponent } from './log-in/methods/oidc/log-in-oidc.component';
+import { MarkdownPipe } from './utils/markdown.pipe';
 
 const MODULES = [
   // Do NOT include UniversalModule, HttpModule, or JsonpModule here
@@ -220,7 +221,8 @@ const PIPES = [
   ObjectKeysPipe,
   ObjectValuesPipe,
   ConsolePipe,
-  ObjNgFor
+  ObjNgFor,
+  MarkdownPipe,
 ];
 
 const COMPONENTS = [
diff --git a/src/app/shared/truncatable/truncatable-part/truncatable-part.component.html b/src/app/shared/truncatable/truncatable-part/truncatable-part.component.html
index 76595c901f..12dedd63e2 100644
--- a/src/app/shared/truncatable/truncatable-part/truncatable-part.component.html
+++ b/src/app/shared/truncatable/truncatable-part/truncatable-part.component.html
@@ -1,5 +1,5 @@
 <div class="clamp-{{background}}-{{lines}} min-{{minLines}} {{type}} {{fixedHeight ? 'fixedHeight' : ''}}">
-    <div class="content dont-break-out">
+    <div class="content dont-break-out preserve-line-breaks">
         <ng-content></ng-content>
     </div>
 </div>
diff --git a/src/app/shared/utils/markdown.pipe.spec.ts b/src/app/shared/utils/markdown.pipe.spec.ts
new file mode 100644
index 0000000000..026c1da103
--- /dev/null
+++ b/src/app/shared/utils/markdown.pipe.spec.ts
@@ -0,0 +1,66 @@
+import { MarkdownPipe } from './markdown.pipe';
+import { TestBed } from '@angular/core/testing';
+import { APP_CONFIG } from '../../../config/app-config.interface';
+import { environment } from '../../../environments/environment';
+
+describe('Markdown Pipe', () => {
+
+  let markdownPipe: MarkdownPipe;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [
+        MarkdownPipe,
+        {
+          provide: APP_CONFIG,
+          useValue: Object.assign(environment, {
+            enableMarkdown: true,
+            enableMathjax: true,
+          })
+        },
+      ],
+    }).compileComponents();
+
+    markdownPipe = TestBed.inject(MarkdownPipe);
+  });
+
+  it('should render markdown', async () => {
+    await testTransform(
+      '# Header',
+      '<h1>Header</h1>'
+    );
+  });
+
+  it('should render mathjax', async () => {
+    await testTransform(
+      '$\\sqrt{2}^2$',
+      '<svg.*?>.*</svg>'
+    );
+  });
+
+  it('should render regular links', async () => {
+    await testTransform(
+      /*eslint-disable quotemark*/
+      '<a href="https://www.dspace.com">DSpace</a>',
+      '<a href="https://www.dspace.com">DSpace</a>'
+      /* eslint-enable quotemark */
+    );
+  });
+
+  it('should not render javascript links', async () => {
+    await testTransform(
+      /*eslint-disable quotemark*/
+      '<a href="javascript:window.alert(\'bingo!\');">exploit</a>',
+      '<a>exploit</a>'
+      /* eslint-enable quotemark */
+    );
+  });
+
+  async function testTransform(input: string, output: string) {
+    expect(
+      await markdownPipe.transform(input)
+    ).toMatch(
+      new RegExp('.*' + output + '.*')
+    );
+  }
+});
diff --git a/src/app/shared/utils/markdown.pipe.ts b/src/app/shared/utils/markdown.pipe.ts
new file mode 100644
index 0000000000..4973089c27
--- /dev/null
+++ b/src/app/shared/utils/markdown.pipe.ts
@@ -0,0 +1,70 @@
+import { Inject, InjectionToken, Pipe, PipeTransform } from '@angular/core';
+import MarkdownIt from 'markdown-it';
+import * as sanitizeHtml from 'sanitize-html';
+import { DomSanitizer, SafeHtml } from '@angular/platform-browser';
+import { environment } from '../../../environments/environment';
+
+const mathjaxLoader = async () => (await import('markdown-it-mathjax3')).default;
+type Mathjax = ReturnType<typeof mathjaxLoader>;
+const MATHJAX = new InjectionToken<Mathjax>(
+  'Lazily loaded mathjax',
+  { providedIn: 'root', factory: mathjaxLoader }
+);
+
+/**
+ * Pipe for rendering markdown and mathjax.
+ */
+@Pipe({
+  name: 'dsMarkdown'
+})
+export class MarkdownPipe implements PipeTransform {
+
+  constructor(
+    protected sanitizer: DomSanitizer,
+    @Inject(MATHJAX) private mathjax: Mathjax,
+  ) {
+  }
+
+  async transform(value: string): Promise<SafeHtml> {
+    const md = new MarkdownIt({
+      html: true,
+      linkify: true,
+    });
+    if (environment.enableMathjax) {
+      md.use(await this.mathjax);
+    }
+    return this.sanitizer.bypassSecurityTrustHtml(
+      sanitizeHtml(md.render(value), {
+        // sanitize-html doesn't let through SVG by default, so we extend its allowlists to cover MathJax SVG
+        allowedTags: [
+          ...sanitizeHtml.defaults.allowedTags,
+          'mjx-container', 'svg', 'g', 'path', 'rect', 'text'
+        ],
+        allowedAttributes: {
+          ...sanitizeHtml.defaults.allowedAttributes,
+          'mjx-container': [
+            'class', 'style', 'jax'
+          ],
+          svg: [
+            'xmlns', 'viewBox', 'style', 'width', 'height', 'role', 'focusable', 'alt', 'aria-label'
+          ],
+          g: [
+            'data-mml-node', 'style', 'stroke', 'fill', 'stroke-width', 'transform'
+          ],
+          path: [
+            'd', 'style', 'transform'
+          ],
+          rect: [
+            'width', 'height', 'x', 'y', 'transform', 'style'
+          ],
+          text: [
+            'transform', 'font-size'
+          ]
+        },
+        parser: {
+          lowerCaseAttributeNames: false,
+        },
+      })
+    );
+  }
+}
diff --git a/src/config/app-config.interface.ts b/src/config/app-config.interface.ts
index 62d0be7216..97e05e519f 100644
--- a/src/config/app-config.interface.ts
+++ b/src/config/app-config.interface.ts
@@ -34,6 +34,8 @@ interface AppConfig extends Config {
   collection: CollectionPageConfig;
   themes: ThemeConfig[];
   mediaViewer: MediaViewerConfig;
+  enableMarkdown: boolean;
+  enableMathjax: boolean;
 }
 
 const APP_CONFIG = new InjectionToken<AppConfig>('APP_CONFIG');
diff --git a/src/config/default-app-config.ts b/src/config/default-app-config.ts
index df9bbe9369..313b2a1cc3 100644
--- a/src/config/default-app-config.ts
+++ b/src/config/default-app-config.ts
@@ -314,4 +314,8 @@ export class DefaultAppConfig implements AppConfig {
     image: false,
     video: false
   };
+
+  enableMarkdown = false;
+
+  enableMathjax = false;
 }
diff --git a/src/environments/environment.test.ts b/src/environments/environment.test.ts
index f8a3248837..f8d08e9840 100644
--- a/src/environments/environment.test.ts
+++ b/src/environments/environment.test.ts
@@ -227,5 +227,7 @@ export const environment: AppConfig = {
   mediaViewer: {
     image: true,
     video: true
-  }
+  },
+  enableMarkdown: false,
+  enableMathjax: false,
 };
diff --git a/src/styles/_global-styles.scss b/src/styles/_global-styles.scss
index e337539c15..af2c995609 100644
--- a/src/styles/_global-styles.scss
+++ b/src/styles/_global-styles.scss
@@ -92,3 +92,7 @@ ngb-modal-backdrop {
   hyphens: auto;
 
 }
+
+.preserve-line-breaks {
+  white-space: pre-line;
+}
diff --git a/yarn.lock b/yarn.lock
index 0f8ef0a6e6..17cf9f0738 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3724,6 +3724,30 @@ check-more-types@^2.24.0:
   resolved "https://registry.yarnpkg.com/check-more-types/-/check-more-types-2.24.0.tgz#1420ffb10fd444dcfc79b43891bbfffd32a84600"
   integrity sha1-FCD/sQ/URNz8ebQ4kbv//TKoRgA=
 
+cheerio-select@^1.5.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/cheerio-select/-/cheerio-select-1.6.0.tgz#489f36604112c722afa147dedd0d4609c09e1696"
+  integrity sha512-eq0GdBvxVFbqWgmCm7M3XGs1I8oLy/nExUnh6oLqmBditPO9AqQJrkslDpMun/hZ0yyTs8L0m85OHp4ho6Qm9g==
+  dependencies:
+    css-select "^4.3.0"
+    css-what "^6.0.1"
+    domelementtype "^2.2.0"
+    domhandler "^4.3.1"
+    domutils "^2.8.0"
+
+cheerio@1.0.0-rc.10:
+  version "1.0.0-rc.10"
+  resolved "https://registry.yarnpkg.com/cheerio/-/cheerio-1.0.0-rc.10.tgz#2ba3dcdfcc26e7956fc1f440e61d51c643379f3e"
+  integrity sha512-g0J0q/O6mW8z5zxQ3A8E8J1hUgp4SMOvEoW/x84OwyHKe/Zccz83PVT4y5Crcr530FV6NgmKI1qvGTKVl9XXVw==
+  dependencies:
+    cheerio-select "^1.5.0"
+    dom-serializer "^1.3.2"
+    domhandler "^4.2.0"
+    htmlparser2 "^6.1.0"
+    parse5 "^6.0.1"
+    parse5-htmlparser2-tree-adapter "^6.0.1"
+    tslib "^2.2.0"
+
 "chokidar@>=2.0.0 <4.0.0", chokidar@^3.0.0, chokidar@^3.3.0, chokidar@^3.4.1, chokidar@^3.4.2, chokidar@^3.5.1, chokidar@^3.5.2:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.5.2.tgz#dba3976fcadb016f66fd365021d91600d01c1e75"
@@ -4048,6 +4072,11 @@ combined-stream@^1.0.6, combined-stream@^1.0.8, combined-stream@~1.0.6:
   dependencies:
     delayed-stream "~1.0.0"
 
+commander@9.2.0:
+  version "9.2.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-9.2.0.tgz#6e21014b2ed90d8b7c9647230d8b7a94a4a419a9"
+  integrity sha512-e2i4wANQiSXgnrBlIatyHtP1odfUp0BbV5Y5nEGbxtIrStkEOAAzCUirvLBNXHLr7kwLvJl6V+4V3XV9x7Wd9w==
+
 commander@^2.11.0, commander@^2.12.1, commander@^2.2.0, commander@^2.20.0:
   version "2.20.3"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
@@ -4063,6 +4092,11 @@ commander@^5.1.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-5.1.0.tgz#46abbd1652f8e059bddaef99bbdcb2ad9cf179ae"
   integrity sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg==
 
+commander@^6.1.0:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.1.tgz#0792eb682dfbc325999bb2b84fddddba110ac73c"
+  integrity sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==
+
 commander@^7.0.0, commander@^7.2.0:
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-7.2.0.tgz#a36cb57d0b501ce108e4d20559a150a391d97ab7"
@@ -4659,6 +4693,17 @@ css-select@^4.1.3:
     domutils "^2.6.0"
     nth-check "^2.0.0"
 
+css-select@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-4.3.0.tgz#db7129b2846662fd8628cfc496abb2b59e41529b"
+  integrity sha512-wPpOYtnsVontu2mODhA19JrqWxNsfdatRKd64kmpRbQgh1KtItko5sTnEpPdpSaJszTOhEMlF/RPz28qj4HqhQ==
+  dependencies:
+    boolbase "^1.0.0"
+    css-what "^6.0.1"
+    domhandler "^4.3.1"
+    domutils "^2.8.0"
+    nth-check "^2.0.1"
+
 css-selector-tokenizer@^0.7.1:
   version "0.7.3"
   resolved "https://registry.yarnpkg.com/css-selector-tokenizer/-/css-selector-tokenizer-0.7.3.tgz#735f26186e67c749aaf275783405cf0661fae8f1"
@@ -4701,6 +4746,11 @@ css-what@^5.0.0:
   resolved "https://registry.yarnpkg.com/css-what/-/css-what-5.1.0.tgz#3f7b707aadf633baf62c2ceb8579b545bb40f7fe"
   integrity sha512-arSMRWIIFY0hV8pIxZMEfmMI47Wj3R/aWpZDDxWYCPEiOMv6tfOrnpDtgxBYPEQD4V0Y/958+1TdC3iWTFcUPw==
 
+css-what@^6.0.1:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-6.1.0.tgz#fb5effcf76f1ddea2c81bdfaa4de44e79bac70f4"
+  integrity sha512-HTUrgRJ7r4dsZKU6GjmpfRK1O76h97Z8MfS1G0FozR+oF2kG6Vfe8JE6zwrkbxigziPHinCJ+gCPjA9EaBDtRw==
+
 css@^2.0.0:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/css/-/css-2.2.4.tgz#c646755c73971f2bba6a601e2cf2fd71b1298929"
@@ -5381,6 +5431,15 @@ dom-serializer@^1.0.1:
     domhandler "^4.2.0"
     entities "^2.0.0"
 
+dom-serializer@^1.3.2:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-1.4.1.tgz#de5d41b1aea290215dc45a6dae8adcf1d32e2d30"
+  integrity sha512-VHwB3KfrcOOkelEG2ZOfxqLZdfkil8PtJi4P8N2MMXucZq2yLp75ClViUlOVwyoHEDjYU433Aq+5zWP61+RGag==
+  dependencies:
+    domelementtype "^2.0.1"
+    domhandler "^4.2.0"
+    entities "^2.0.0"
+
 domain-browser@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
@@ -5403,7 +5462,7 @@ domexception@^2.0.1:
   dependencies:
     webidl-conversions "^5.0.0"
 
-domhandler@^3.0.0:
+domhandler@^3.0.0, domhandler@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-3.3.0.tgz#6db7ea46e4617eb15cf875df68b2b8524ce0037a"
   integrity sha512-J1C5rIANUbuYK+FuFL98650rihynUOEzRLxW+90bKZRWB6A1X1Tf82GxR1qAWLyfNPRvjqfip3Q5tdYlmAa9lA==
@@ -5417,6 +5476,13 @@ domhandler@^4.0.0, domhandler@^4.2.0:
   dependencies:
     domelementtype "^2.2.0"
 
+domhandler@^4.3.1:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-4.3.1.tgz#8d792033416f59d68bc03a5aa7b018c1ca89279c"
+  integrity sha512-GrwoxYN+uWlzO8uhUXRl0P+kHE4GtVPfYzVLcUxPL7KNdHKj66vvlhiweIHqYYXWlw+T8iLMp42Lm67ghw4WMQ==
+  dependencies:
+    domelementtype "^2.2.0"
+
 domino@^2.1.2:
   version "2.1.6"
   resolved "https://registry.yarnpkg.com/domino/-/domino-2.1.6.tgz#fe4ace4310526e5e7b9d12c7de01b7f485a57ffe"
@@ -5435,7 +5501,7 @@ domutils@^1.7.0:
     dom-serializer "0"
     domelementtype "1"
 
-domutils@^2.0.0, domutils@^2.5.2, domutils@^2.6.0:
+domutils@^2.0.0, domutils@^2.4.2, domutils@^2.5.2, domutils@^2.6.0, domutils@^2.8.0:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/domutils/-/domutils-2.8.0.tgz#4437def5db6e2d1f5d6ee859bd95ca7d02048135"
   integrity sha512-w96Cjofp72M5IIhpjgobBimYEfoPjx1Vx0BSX9P30WBdZW2WIKU0T1Bd0kz2eNZ9ikjKgHbEyKx8BB6H1L3h3A==
@@ -5658,6 +5724,11 @@ entities@^2.0.0:
   resolved "https://registry.yarnpkg.com/entities/-/entities-2.2.0.tgz#098dc90ebb83d8dffa089d55256b351d34c4da55"
   integrity sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==
 
+entities@~3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-3.0.1.tgz#2b887ca62585e96db3903482d336c1006c3001d4"
+  integrity sha512-WiyBqoomrwMdFG1e0kqvASYfnlb0lp8M5o5Fw2OFq1hNZxxcNk8Ik0Xm7LxzBhuidnZB/UtBqVCgUz3kBOP51Q==
+
 env-paths@^2.2.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/env-paths/-/env-paths-2.2.1.tgz#420399d416ce1fbe9bc0a07c62fa68d67fd0f8f2"
@@ -5787,6 +5858,11 @@ escape-goat@^2.0.0:
   resolved "https://registry.yarnpkg.com/escape-goat/-/escape-goat-2.1.1.tgz#1b2dc77003676c457ec760b2dc68edb648188675"
   integrity sha512-8/uIhbG12Csjy2JEW7D9pHbreaVaS/OpN3ycnyvElTdwM5n6GY6W6e2IPemfvGZeUMqZ9A/3GqIZMgKnBhAw/Q==
 
+escape-goat@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/escape-goat/-/escape-goat-3.0.0.tgz#e8b5fb658553fe8a3c4959c316c6ebb8c842b19c"
+  integrity sha512-w3PwNZJwRxlp47QGzhuEBldEqVHHhh8/tIPcl6ecf2Bou99cdAt0knihBV0Ecc7CGxYduXVBDheH1K2oADRlvw==
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -5797,6 +5873,11 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
   integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
 
+escape-string-regexp@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz#14ba83a5d373e3d311e5afca29cf5bfad965bf34"
+  integrity sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==
+
 escodegen@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-2.0.0.tgz#5e32b12833e8aa8fa35e1bf0befa89380484c7dd"
@@ -5817,6 +5898,11 @@ eslint-scope@^4.0.3:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+esm@^3.2.25:
+  version "3.2.25"
+  resolved "https://registry.yarnpkg.com/esm/-/esm-3.2.25.tgz#342c18c29d56157688ba5ce31f8431fbb795cc10"
+  integrity sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA==
+
 esprima@^4.0.0, esprima@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
@@ -6951,7 +7037,17 @@ htmlparser2@^4.1.0:
     domutils "^2.0.0"
     entities "^2.0.0"
 
-htmlparser2@^6.1.0:
+htmlparser2@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-5.0.1.tgz#7daa6fc3e35d6107ac95a4fc08781f091664f6e7"
+  integrity sha512-vKZZra6CSe9qsJzh0BjBGXo8dvzNsq/oGvsjfRdOrrryfeD9UOBEEQdeoqCRmKZchF5h2zOBMQ6YuQ0uRUmdbQ==
+  dependencies:
+    domelementtype "^2.0.1"
+    domhandler "^3.3.0"
+    domutils "^2.4.2"
+    entities "^2.0.0"
+
+htmlparser2@^6.0.0, htmlparser2@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-6.1.0.tgz#c4d762b6c3371a05dbe65e94ae43a9f845fb8fb7"
   integrity sha512-gyyPk6rgonLFEDGoeRgQNaEUvdJ4ktTmmUh/h2t7s+M8oPpIPxgNACWa+6ESR57kXstwqPiCut0V8NRpcwgU7A==
@@ -7753,6 +7849,11 @@ is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   dependencies:
     isobject "^3.0.1"
 
+is-plain-object@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-5.0.0.tgz#4427f50ab3429e9025ea7d52e9043a9ef4159344"
+  integrity sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==
+
 is-potential-custom-element-name@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-potential-custom-element-name/-/is-potential-custom-element-name-1.0.1.tgz#171ed6f19e3ac554394edf78caa05784a45bebb5"
@@ -8290,6 +8391,17 @@ jszip@^3.1.3:
     readable-stream "~2.3.6"
     set-immediate-shim "~1.0.1"
 
+juice@^8.0.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/juice/-/juice-8.1.0.tgz#4ea23362522fe06418229943237ee3751a4fca70"
+  integrity sha512-FLzurJrx5Iv1e7CfBSZH68dC04EEvXvvVvPYB7Vx1WAuhCp1ZPIMtqxc+WTWxVkpTIC2Ach/GAv0rQbtGf6YMA==
+  dependencies:
+    cheerio "1.0.0-rc.10"
+    commander "^6.1.0"
+    mensch "^0.3.4"
+    slick "^1.12.2"
+    web-resource-inliner "^6.0.1"
+
 jwt-decode@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/jwt-decode/-/jwt-decode-3.1.2.tgz#3fb319f3675a2df0c2895c8f5e9fa4b67b04ed59"
@@ -8551,6 +8663,13 @@ lines-and-columns@^1.1.6:
   resolved "https://registry.yarnpkg.com/lines-and-columns/-/lines-and-columns-1.2.4.tgz#eca284f75d2965079309dc0ad9255abb2ebc1632"
   integrity sha512-7ylylesZQ/PV29jhEDl3Ufjo6ZX7gCqJr5F7PKrqc93v7fzSymt1BpwEU8nAUXs8qzzvqhbjhK5QZg6Mt/HkBg==
 
+linkify-it@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/linkify-it/-/linkify-it-4.0.1.tgz#01f1d5e508190d06669982ba31a7d9f56a5751ec"
+  integrity sha512-C7bfi1UZmoj8+PQx22XyeXCuBlokoyWQL5pWSP+EI6nzRylyThouddufc2c1NDIcP9k5agmN9fLpA7VNJfIiqw==
+  dependencies:
+    uc.micro "^1.0.1"
+
 listr2@^3.8.3:
   version "3.13.5"
   resolved "https://registry.yarnpkg.com/listr2/-/listr2-3.13.5.tgz#105a813f2eb2329c4aae27373a281d610ee4985f"
@@ -8845,6 +8964,35 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+markdown-it-mathjax3@^4.3.1:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/markdown-it-mathjax3/-/markdown-it-mathjax3-4.3.1.tgz#7ff1e79204074955d4dc38402a81f38f7030e614"
+  integrity sha512-IkM3Cuk4rtjy9VwLzWpgeitcwnEmK2eYJrztNRv1v7mwZaOLMTkgjJGT71GdJADrpvAEWhNn43EKtjynhEsaIQ==
+  dependencies:
+    juice "^8.0.0"
+    mathjax-full "^3.2.0"
+
+markdown-it@^13.0.1:
+  version "13.0.1"
+  resolved "https://registry.yarnpkg.com/markdown-it/-/markdown-it-13.0.1.tgz#c6ecc431cacf1a5da531423fc6a42807814af430"
+  integrity sha512-lTlxriVoy2criHP0JKRhO2VDG9c2ypWCsT237eDiLqi09rmbKoUetyGHq2uOIRoRS//kfoJckS0eUzzkDR+k2Q==
+  dependencies:
+    argparse "^2.0.1"
+    entities "~3.0.1"
+    linkify-it "^4.0.1"
+    mdurl "^1.0.1"
+    uc.micro "^1.0.5"
+
+mathjax-full@^3.2.0:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/mathjax-full/-/mathjax-full-3.2.2.tgz#43f02e55219db393030985d2b6537ceae82f1fa7"
+  integrity sha512-+LfG9Fik+OuI8SLwsiR02IVdjcnRCy5MufYLi0C3TdMT56L/pjB0alMVGgoWJF8pN9Rc7FESycZB9BMNWIid5w==
+  dependencies:
+    esm "^3.2.25"
+    mhchemparser "^4.1.0"
+    mj-context-menu "^0.6.1"
+    speech-rule-engine "^4.0.6"
+
 md5.js@^1.3.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"
@@ -8873,6 +9021,11 @@ mdn-data@2.0.4:
   resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.4.tgz#699b3c38ac6f1d728091a64650b65d388502fd5b"
   integrity sha512-iV3XNKw06j5Q7mi6h+9vbx23Tv7JkjEVgKHW4pimwyDGWm0OIQntJJ+u1C6mg6mK1EaTv42XQ7w76yuzH7M2cA==
 
+mdurl@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/mdurl/-/mdurl-1.0.1.tgz#fe85b2ec75a59037f2adfec100fd6c601761152e"
+  integrity sha512-/sKlQJCBYVY9Ers9hqzKou4H6V5UWc/M59TH2dvkt+84itfnq7uFOMLpOiOS4ujvHP4etln18fmIxA5R5fll0g==
+
 media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
@@ -8906,6 +9059,11 @@ memory-fs@^0.5.0:
     errno "^0.1.3"
     readable-stream "^2.0.1"
 
+mensch@^0.3.4:
+  version "0.3.4"
+  resolved "https://registry.yarnpkg.com/mensch/-/mensch-0.3.4.tgz#770f91b46cb16ea5b204ee735768c3f0c491fecd"
+  integrity sha512-IAeFvcOnV9V0Yk+bFhYR07O3yNina9ANIN5MoXBKYJ/RLYPurd2d0yw14MDhpr9/momp0WofT1bPUh3hkzdi/g==
+
 merge-descriptors@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
@@ -8938,6 +9096,11 @@ methods@~1.1.2:
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
   integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
 
+mhchemparser@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/mhchemparser/-/mhchemparser-4.1.1.tgz#a2142fdab37a02ec8d1b48a445059287790becd5"
+  integrity sha512-R75CUN6O6e1t8bgailrF1qPq+HhVeFTM3XQ0uzI+mXTybmphy3b6h4NbLOYhemViQ3lUs+6CKRkC3Ws1TlYREA==
+
 micromatch@^3.1.10, micromatch@^3.1.4:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
@@ -8995,7 +9158,7 @@ mime@1.6.0, mime@^1.4.1:
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
   integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
 
-mime@^2.4.4, mime@^2.4.5:
+mime@^2.4.4, mime@^2.4.5, mime@^2.4.6:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.6.0.tgz#a2a682a95cd4d0cb1d6257e28f83da7e35800367"
   integrity sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==
@@ -9201,6 +9364,11 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
+mj-context-menu@^0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/mj-context-menu/-/mj-context-menu-0.6.1.tgz#a043c5282bf7e1cf3821de07b13525ca6f85aa69"
+  integrity sha512-7NO5s6n10TIV96d4g2uDpG7ZDpIhMh0QNfGdJw/W47JswFcosz457wqz/b5sAKvl12sxINGFCn80NZHKwxQEXA==
+
 mkdirp@^0.5.1, mkdirp@^0.5.3, mkdirp@^0.5.5, mkdirp@~0.5.1:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
@@ -9294,6 +9462,11 @@ nanoid@^3.1.23, nanoid@^3.1.30:
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.30.tgz#63f93cc548d2a113dc5dfbc63bfa09e2b9b64362"
   integrity sha512-zJpuPDwOv8D2zq2WRoMe1HsfZthVewpel9CAvTfc/2mBD1uUT/agc5f7GHGWXlYkFvi1mVxe4IjvP2HNrop7nQ==
 
+nanoid@^3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
+  integrity sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -9397,6 +9570,13 @@ no-case@^3.0.4:
     lower-case "^2.0.2"
     tslib "^2.0.3"
 
+node-fetch@^2.6.0:
+  version "2.6.7"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.7.tgz#24de9fba827e3b4ae44dc8b20256a379160052ad"
+  integrity sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==
+  dependencies:
+    whatwg-url "^5.0.0"
+
 node-fetch@^2.6.1:
   version "2.6.6"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.6.tgz#1751a7c01834e8e1697758732e9efb6eeadfaf89"
@@ -9654,6 +9834,13 @@ nth-check@^2.0.0:
   dependencies:
     boolbase "^1.0.0"
 
+nth-check@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.1.1.tgz#c9eab428effce36cd6b92c924bdb000ef1f1ed1d"
+  integrity sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==
+  dependencies:
+    boolbase "^1.0.0"
+
 num2fraction@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/num2fraction/-/num2fraction-1.2.2.tgz#6f682b6a027a4e9ddfa4564cd2589d1d4e669ede"
@@ -10089,6 +10276,11 @@ parse-node-version@^1.0.1:
   resolved "https://registry.yarnpkg.com/parse-node-version/-/parse-node-version-1.0.1.tgz#e2b5dbede00e7fa9bc363607f53327e8b073189b"
   integrity sha512-3YHlOa/JgH6Mnpr05jP9eDG254US9ek25LyIxZlDItp2iJtwyaXQb57lBYLdT3MowkUFYEV2XXNAYIPlESvJlA==
 
+parse-srcset@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/parse-srcset/-/parse-srcset-1.0.2.tgz#f2bd221f6cc970a938d88556abc589caaaa2bde1"
+  integrity sha512-/2qh0lav6CmI15FzA3i/2Bzk2zCgQhGMkvhOhKNcBVQ1ldgpbfiNTVslmooUmWJcADi1f1kIeynbDRVzNlfR6Q==
+
 parse5-html-rewriting-stream@6.0.1:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/parse5-html-rewriting-stream/-/parse5-html-rewriting-stream-6.0.1.tgz#de1820559317ab4e451ea72dba05fddfd914480b"
@@ -11298,6 +11490,15 @@ postcss@^8.1.4, postcss@^8.3.7:
     picocolors "^1.0.0"
     source-map-js "^1.0.1"
 
+postcss@^8.3.11:
+  version "8.4.16"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.16.tgz#33a1d675fac39941f5f445db0de4db2b6e01d43c"
+  integrity sha512-ipHE1XBvKzm5xI7hiHCZJCSugxvsdq2mPnsq5+UF+VHCjiBvtDrlxJfMBToWaP9D5XlgNmcFGqoHmUn0EYEaRQ==
+  dependencies:
+    nanoid "^3.3.4"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -12430,6 +12631,18 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
+sanitize-html@^2.7.2:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/sanitize-html/-/sanitize-html-2.7.2.tgz#54c5189af75e3237d996e4b9a5e3eaad12c7f7fc"
+  integrity sha512-DggSTe7MviO+K4YTCwprG6W1vsG+IIX67yp/QY55yQqKCJYSWzCA1rZbaXzkjoKeL9+jqwm56wD6srYLtUNivg==
+  dependencies:
+    deepmerge "^4.2.2"
+    escape-string-regexp "^4.0.0"
+    htmlparser2 "^6.0.0"
+    is-plain-object "^5.0.0"
+    parse-srcset "^1.0.2"
+    postcss "^8.3.11"
+
 sass-loader@10.0.1:
   version "10.0.1"
   resolved "https://registry.yarnpkg.com/sass-loader/-/sass-loader-10.0.1.tgz#10c0364d8034f22fee25ddcc9eded20f99bbe3b4"
@@ -12870,6 +13083,11 @@ slice-ansi@^4.0.0:
     astral-regex "^2.0.0"
     is-fullwidth-code-point "^3.0.0"
 
+slick@^1.12.2:
+  version "1.12.2"
+  resolved "https://registry.yarnpkg.com/slick/-/slick-1.12.2.tgz#bd048ddb74de7d1ca6915faa4a57570b3550c2d7"
+  integrity sha512-4qdtOGcBjral6YIBCWJ0ljFSKNLz9KkhbWtuGvUyRowl1kxfuE1x/Z/aJcaiilpb3do9bl5K7/1h9XC5wWpY/A==
+
 smart-buffer@^4.1.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-4.2.0.tgz#6e1d71fa4f18c05f7d0ff216dd16a481d0e8d9ae"
@@ -13050,6 +13268,11 @@ source-map-js@^1.0.1:
   resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.1.tgz#a1741c131e3c77d048252adfa24e23b908670caf"
   integrity sha512-4+TN2b3tqOCd/kaGRJ/sTYA0tR0mdXx26ipdolxcwtJVqEnqNYvlCAt1q3ypy4QMlYus+Zh34RNtYLoq2oQ4IA==
 
+source-map-js@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
+  integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==
+
 source-map-loader@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/source-map-loader/-/source-map-loader-1.0.2.tgz#b0a6582b2eaa387ede1ecf8061ae0b93c23f9eb0"
@@ -13168,6 +13391,15 @@ spdy@^4.0.2:
     select-hose "^2.0.0"
     spdy-transport "^3.0.0"
 
+speech-rule-engine@^4.0.6:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/speech-rule-engine/-/speech-rule-engine-4.0.7.tgz#b655dacbad3dae04acc0f7665e26ef258397dd09"
+  integrity sha512-sJrL3/wHzNwJRLBdf6CjJWIlxC04iYKkyXvYSVsWVOiC2DSkHmxsqOhEeMsBA9XK+CHuNcsdkbFDnoUfAsmp9g==
+  dependencies:
+    commander "9.2.0"
+    wicked-good-xpath "1.3.0"
+    xmldom-sre "0.1.31"
+
 speed-measure-webpack-plugin@1.3.3:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/speed-measure-webpack-plugin/-/speed-measure-webpack-plugin-1.3.3.tgz#6ff894fc83e8a6310dde3af863a0329cd79da4f5"
@@ -13977,6 +14209,11 @@ tslib@^2.0.0, tslib@^2.0.3:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.3.1.tgz#e8a335add5ceae51aa261d32a490158ef042ef01"
   integrity sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw==
 
+tslib@^2.2.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
+  integrity sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==
+
 tslint@^6.1.3:
   version "6.1.3"
   resolved "https://registry.yarnpkg.com/tslint/-/tslint-6.1.3.tgz#5c23b2eccc32487d5523bd3a470e9aa31789d904"
@@ -14116,6 +14353,11 @@ ua-parser-js@1.0.2:
   resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-1.0.2.tgz#e2976c34dbfb30b15d2c300b2a53eac87c57a775"
   integrity sha512-00y/AXhx0/SsnI51fTc0rLRmafiGOM4/O+ny10Ps7f+j/b8p/ZY11ytMgznXkOVo4GQ+KwQG5UQLkLGirsACRg==
 
+uc.micro@^1.0.1, uc.micro@^1.0.5:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/uc.micro/-/uc.micro-1.0.6.tgz#9c411a802a409a91fc6cf74081baba34b24499ac"
+  integrity sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==
+
 unbox-primitive@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/unbox-primitive/-/unbox-primitive-1.0.1.tgz#085e215625ec3162574dc8859abee78a59b14471"
@@ -14374,6 +14616,11 @@ uuid@^3.0.0, uuid@^3.2.1, uuid@^3.3.2, uuid@^3.4.0:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.4.0.tgz#b23e4358afa8a202fe7a100af1f5f883f02007ee"
   integrity sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==
 
+valid-data-url@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/valid-data-url/-/valid-data-url-3.0.1.tgz#826c1744e71b5632e847dd15dbd45b9fb38aa34f"
+  integrity sha512-jOWVmzVceKlVVdwjNSenT4PbGghU0SBIizAev8ofZVgivk/TVHXSbNL8LP6M3spZvkR9/QolkyJavGSX5Cs0UA==
+
 validate-npm-package-name@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/validate-npm-package-name/-/validate-npm-package-name-3.0.0.tgz#5fa912d81eb7d0c74afc140de7317f0ca7df437e"
@@ -14461,6 +14708,18 @@ wcwidth@^1.0.1:
   dependencies:
     defaults "^1.0.3"
 
+web-resource-inliner@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/web-resource-inliner/-/web-resource-inliner-6.0.1.tgz#df0822f0a12028805fe80719ed52ab6526886e02"
+  integrity sha512-kfqDxt5dTB1JhqsCUQVFDj0rmY+4HLwGQIsLPbyrsN9y9WV/1oFDSx3BQ4GfCv9X+jVeQ7rouTqwK53rA/7t8A==
+  dependencies:
+    ansi-colors "^4.1.1"
+    escape-goat "^3.0.0"
+    htmlparser2 "^5.0.0"
+    mime "^2.4.6"
+    node-fetch "^2.6.0"
+    valid-data-url "^3.0.0"
+
 webdriver-js-extender@2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/webdriver-js-extender/-/webdriver-js-extender-2.1.0.tgz#57d7a93c00db4cc8d556e4d3db4b5db0a80c3bb7"
@@ -14914,6 +15173,11 @@ which@^2.0.1, which@^2.0.2:
   dependencies:
     isexe "^2.0.0"
 
+wicked-good-xpath@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/wicked-good-xpath/-/wicked-good-xpath-1.3.0.tgz#81b0e95e8650e49c94b22298fff8686b5553cf6c"
+  integrity sha512-Gd9+TUn5nXdwj/hFsPVx5cuHHiF5Bwuc30jZ4+ronF1qHK5O7HD0sgmXWSEgwKquT3ClLoKPVbO6qGwVwLzvAw==
+
 wide-align@^1.1.0:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.5.tgz#df1d4c206854369ecf3c9a4898f1b23fbd9d15d3"
@@ -15049,6 +15313,11 @@ xmlchars@^2.2.0:
   resolved "https://registry.yarnpkg.com/xmlchars/-/xmlchars-2.2.0.tgz#060fe1bcb7f9c76fe2a17db86a9bc3ab894210cb"
   integrity sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==
 
+xmldom-sre@0.1.31:
+  version "0.1.31"
+  resolved "https://registry.yarnpkg.com/xmldom-sre/-/xmldom-sre-0.1.31.tgz#10860d5bab2c603144597d04bf2c4980e98067f4"
+  integrity sha512-f9s+fUkX04BxQf+7mMWAp5zk61pciie+fFLC9hX9UVvCeJQfNHRHXpeo5MPcR0EUf57PYLdt+ZO4f3Ipk2oZUw==
+
 xmlhttprequest-ssl@~1.6.2:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.6.3.tgz#03b713873b01659dfa2c1c5d056065b27ddc2de6"