fix(content-management): static pages editor reads supported locales instead of hardcoding en/ru/hy

src/app/features/content-management/components/static-pages-editor.component.html

@@ -34,7 +34,7 @@
           <label><span>{{ 'builder.orderLabel' | translate }}</span><input type="number" [ngModel]="page.order" (ngModelChange)="updatePage(page.id, { order: +$event })" /></label>
         </div>
 
-        @for (locale of ['en','ru','hy']; track locale) {
+        @for (locale of locales(); track locale) {
           <div class="editor-grid two">
             <label>
               <span>{{ 'builder.translationTitle' | translate }} {{ locale }}</span>

src/app/features/content-management/components/static-pages-editor.component.ts

@@ -20,6 +20,7 @@ export class StaticPagesEditorComponent {
   readonly bootstrap = this.projectEditor.bootstrap;
   readonly pages = computed(() => this.contentFacade.pages(this.bootstrap()));
   readonly validation = computed(() => this.contentFacade.validatePages(this.bootstrap()));
+  readonly locales = computed(() => this.bootstrap()?.localization.supportedLocales ?? ['en']);
 
   createPage(): void {
     const page: ContentPage = {