feat: Response mobile layout support v1

toju-app/src/app/app.ts

@@ -30,7 +30,7 @@ import { ServerDirectoryFacade } from './domains/server-directory';
 import { NotificationsFacade } from './domains/notifications';
 import { TimeSyncService } from './core/services/time-sync.service';
 import { VoiceSessionFacade } from './domains/voice-session';
-import { ExternalLinkService } from './core/platform';
+import { ExternalLinkService, ViewportService } from './core/platform';
 import { SettingsModalService } from './core/services/settings-modal.service';
 import { ElectronBridgeService } from './core/platform/electron/electron-bridge.service';
 import { UserStatusService } from './core/services/user-status.service';
@@ -99,6 +99,8 @@ export class App implements OnInit, OnDestroy {
   readonly theme = inject(ThemeService);
   readonly voiceSession = inject(VoiceSessionFacade);
   readonly externalLinks = inject(ExternalLinkService);
+  readonly viewport = inject(ViewportService);
+  readonly isMobile = this.viewport.isMobile;
   readonly electronBridge = inject(ElectronBridgeService);
   readonly userStatus = inject(UserStatusService);
   readonly gameActivity = inject(GameActivityService);