Added functionality to disable COAR notify support link in footer

Also fixed error that showed a blank page instead of a 404 when disabling EULA/Privacy Policy pages

src/app/info/notify-info/notify-info.component.ts

@@ -0,0 +1,56 @@
+import { AsyncPipe } from '@angular/common';
+import {
+  Component,
+  OnInit,
+} from '@angular/core';
+import { RouterLink } from '@angular/router';
+import { TranslateModule } from '@ngx-translate/core';
+import {
+  map,
+  Observable,
+  of,
+} from 'rxjs';
+
+import { NotifyInfoService } from '../../core/coar-notify/notify-info/notify-info.service';
+
+@Component({
+  selector: 'ds-notify-info',
+  templateUrl: './notify-info.component.html',
+  styleUrls: ['./notify-info.component.scss'],
+  imports: [
+    RouterLink,
+    TranslateModule,
+    AsyncPipe,
+  ],
+  standalone: true,
+})
+/**
+ * Component for displaying COAR notification information.
+ */
+export class NotifyInfoComponent implements OnInit {
+  /**
+   * Observable containing the COAR REST INBOX API URLs.
+   */
+  coarRestApiUrl: Observable<string[]> = of([]);
+
+  constructor(private notifyInfoService: NotifyInfoService) {}
+
+  ngOnInit() {
+    this.coarRestApiUrl = this.notifyInfoService.getCoarLdnLocalInboxUrls();
+  }
+
+  /**
+   * Generates HTML code for COAR REST API links.
+   * @returns An Observable that emits the generated HTML code.
+   */
+  generateCoarRestApiLinksHTML() {
+    return this.coarRestApiUrl.pipe(
+      // transform the data into HTML
+      map((urls) => {
+        return urls.map(url => `
+          <code><a href="${url}" target="_blank"><span class="api-url">${url}</span></a></code>
+        `).join(',');
+      }),
+    );
+  }
+}