Added flags for language change

src/app/service/reload.service.ts

@@ -0,0 +1,32 @@
+import { Injectable, NgZone, signal } from '@angular/core';
+import {Constants} from '../constants/Constants';
+
+
+@Injectable({ providedIn: 'root' })
+export class ReloadService {
+  private readonly _reloadTick = signal(0);
+  readonly reloadTick = this._reloadTick.asReadonly();
+
+  private readonly _languageChangedTick = signal(0);
+  readonly languageChangedTick = this._languageChangedTick.asReadonly();
+
+  constructor(zone: NgZone) {
+    zone.runOutsideAngular(() => {
+      globalThis.addEventListener('storage', (e: StorageEvent) => {
+        this.informListeners(e, zone);
+      });
+    });
+  }
+
+
+  private informListeners(e: StorageEvent, zone: NgZone) {
+    if (e.key === Constants.LANGUAGE_KEY) {
+      zone.run(() => this._languageChangedTick.update(v => v + 1));
+    }
+  }
+
+  bumpLanguageChanged(): void {
+    this._reloadTick.update(v => v + 1);
+    localStorage.setItem(Constants.RELOAD_ALL_LANG_LISTENER_KEY, String(Date.now()));
+  }
+}