feat: Refactor sign-out method to use unified service call across repositories

apps/mobile/packages/features/client/settings/lib/src/data/repositories_impl/settings_repository_impl.dart

@@ -15,7 +15,7 @@ class SettingsRepositoryImpl implements SettingsRepositoryInterface {
   @override
   Future<void> signOut() async {
     return _service.run(() async {
-      await _service.auth.signOut();
+      await _service.signOut();
     });
   }
 }