feat(project-editor): add Languages tab with generic locale sync

src/app/features/project-editor/facade/project-editor.facade.ts

@@ -4,6 +4,7 @@ import { BootstrapConfig, DEFAULT_CATALOG_CONFIG, DEFAULT_HEADER_CONFIG, DEFAULT
 import { ConfigService } from '../../../core/config/config.service';
 import { ProjectEditorIoService } from '../services/project-editor-io.service';
 import { ProjectEditorPreviewService } from '../services/project-editor-preview.service';
+import { LocaleSyncService } from '../services/locale-sync.service';
 import { ProjectEditorState } from '../models/project-editor.model';
 
 @Injectable({ providedIn: 'root' })
@@ -11,6 +12,7 @@ export class ProjectEditorFacade {
   private readonly configService = inject(ConfigService);
   private readonly ioService = inject(ProjectEditorIoService);
   private readonly previewService = inject(ProjectEditorPreviewService);
+  private readonly localeSync = inject(LocaleSyncService);
 
   private readonly state = signal<ProjectEditorState>({
     bootstrap: null,
@@ -70,6 +72,22 @@ export class ProjectEditorFacade {
     this.state.update(current => ({ ...current, activeSection }));
   }
 
+  addLocale(locale: string): void {
+    this.updateBootstrap(current => this.localeSync.addLocale(current, locale));
+  }
+
+  removeLocale(locale: string): void {
+    this.updateBootstrap(current => this.localeSync.removeLocale(current, locale));
+  }
+
+  setDefaultLocale(locale: string): void {
+    this.updateBootstrap(current => ({
+      ...current,
+      tenant: { ...current.tenant, defaultLocale: locale },
+      localization: { ...current.localization, defaultLocale: locale },
+    }));
+  }
+
   private normalize(config: BootstrapConfig): BootstrapConfig {
     return {
       ...config,