New themed components & minor CSS fixes (#2442)

* 100839: Created themeable BrowseByComponent

* 100839: Added themed BrowseByComponent to custom theme

* 100839: Added themed BrowseEntryListElementComponent to custom theme

* Added PersonComponent to custom theme

* Themed LogInComponent

* Fix focus on navbar using different color

* Fix ccLicense checkbox margin

* Fix long search facets name not displaying correctly

* Removed RecentItemListComponent's unnecessary float causing alignment issues when adding components underneath it

* Themed RegisterEmailFormComponent

src/app/shared/log-in/themed-log-in.component.ts

@@ -0,0 +1,33 @@
+import { Component, Input } from '@angular/core';
+import { ThemedComponent } from '../theme-support/themed.component';
+import { LogInComponent } from './log-in.component';
+
+/**
+ * Themed wrapper for {@link LogInComponent}
+ */
+@Component({
+  selector: 'ds-themed-log-in',
+  styleUrls: [],
+  templateUrl: './../theme-support/themed.component.html'
+})
+export class ThemedLogInComponent extends ThemedComponent<LogInComponent> {
+
+  @Input() isStandalonePage: boolean;
+
+  protected inAndOutputNames: (keyof LogInComponent & keyof this)[] = [
+    'isStandalonePage',
+  ];
+
+  protected getComponentName(): string {
+    return 'LogInComponent';
+  }
+
+  protected importThemedComponent(themeName: string): Promise<any> {
+    return import(`../../../themes/${themeName}/app/shared/log-in/log-in.component`);
+  }
+
+  protected importUnthemedComponent(): Promise<any> {
+    return import('./log-in.component');
+  }
+
+}