Convert observables to signals.

frontend/src/app/pages/my-publications/my-publications.component.html

@@ -9,13 +9,13 @@
     +
 </a>
 
-@if ((isLoading$ | async) === true) {
+@if (isLoading()) {
     <h2 i18n>Publication loading...</h2>
     <mat-spinner></mat-spinner>
 } @else {
-    @if ((isLoaded$ | async) === true) {
-        <app-publication-list [publications$]="publications$"></app-publication-list>
+    @if (isLoaded()) {
+        <app-publication-list [publications]="publications()"></app-publication-list>
     } @else {
         <h2 i18n>There is no any publication...</h2>
     }
-}
+}