Code cleaning about publication edition component.

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

@@ -0,0 +1,13 @@
+@if ((isLoading$ | async) == true) {
+    <mat-spinner></mat-spinner>
+} 
+@else {
+    @if (publication) {
+        <app-publication-edition [publication]="publication" [isSaving$]="isSaving$" (publicationSave)="onPublicationSave($event)"></app-publication-edition>
+    }
+    @else {
+        <div class="loading-failed">
+            <h1>Publication failed to load...</h1>
+        </div>
+    }
+}