Update dependencies - spring boot 4 and angular 21 (#10)

Co-authored-by: Florian THIERRY
Reviewed-on: #10

frontend/src/app/components/publication-edition/publication-edition.component.ts

@@ -19,7 +19,6 @@ import { MatRippleModule } from "@angular/material/core";
 
 @Component({
     selector: 'app-publication-edition',
-    standalone: true,
     templateUrl: './publication-edition.component.html',
     styleUrl: './publication-edition.component.scss',
     imports: [
@@ -32,7 +31,6 @@ import { MatRippleModule } from "@angular/material/core";
         MatSelectModule,
         MatTabsModule,
         MatTooltipModule,
-        PictureSelectionDialog,
         ReactiveFormsModule,
         SubmitButtonComponent
     ],
@@ -147,4 +145,4 @@ export class PublicationEditionComponent implements OnChanges, OnDestroy {
             this.publicationEditionService.loadPreview();
         }
     }
-}
+}