Upgrade angular material from 19 to 20.

frontend/src/app/pages/publication-update/publication-update.component.ts

@@ -11,10 +11,8 @@ import { MatTooltipModule } from '@angular/material/tooltip';
 import { ActivatedRoute, Router } from '@angular/router';
 import { BehaviorSubject, Observable, Subscription } from 'rxjs';
 import { PublicationEditionComponent } from '../../components/publication-edition/publication-edition.component';
-import { SubmitButtonComponent } from '../../components/submit-button/submit-button.component';
 import { Publication } from '../../core/rest-services/publications/model/publication';
 import { PublicationRestService } from '../../core/rest-services/publications/publication.rest-service';
-import { PictureSelectionDialog } from '../../components/publication-edition/picture-selection-dialog/picture-selection-dialog.component';
 
 @Component({
     selector: 'app-publication-update',
@@ -26,9 +24,7 @@ import { PictureSelectionDialog } from '../../components/publication-edition/pic
         MatProgressSpinnerModule,
         MatTabsModule,
         MatTooltipModule,
-        PictureSelectionDialog,
         ReactiveFormsModule,
-        SubmitButtonComponent,
         PublicationEditionComponent
     ],
     templateUrl: './publication-update.component.html',
@@ -55,7 +51,7 @@ export class PublicationUpdateComponent implements OnInit, OnDestroy {
 
   ngOnInit(): void {
     this.isLoadingSubject.next(true);
-    this.activatedRoute.paramMap.subscribe(params => {
+    const activatedRouteSubscription = this.activatedRoute.paramMap.subscribe(params => {
         const publicationId = params.get('publicationId');
         if (publicationId == undefined) {
             this.snackBar.open($localize`A technical error occurred while loading publication data.`, $localize`Close`, { duration: 5000 });
@@ -73,6 +69,7 @@ export class PublicationUpdateComponent implements OnInit, OnDestroy {
             .finally(() => this.isLoadingSubject.next(false));
         }
       });
+    this.subscriptions.push(activatedRouteSubscription);
   }
 
   ngOnDestroy(): void {
@@ -93,4 +90,4 @@ export class PublicationUpdateComponent implements OnInit, OnDestroy {
         })
         .finally(() => this.isSavingSubject.next(false));
   }
-}
+}