feat: Implement app lock

lib/main.dart

@@ -5,11 +5,14 @@ import 'package:adaptive_theme/adaptive_theme.dart';
 import 'package:adaptive_page_layout/adaptive_page_layout.dart';
 import 'package:famedlysdk/famedlysdk.dart';
 import 'package:fluffychat/config/routes.dart';
+import 'package:fluffychat/utils/platform_infos.dart';
 import 'package:fluffychat/utils/sentry_controller.dart';
+import 'package:fluffychat/views/lock_screen.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_app_lock/flutter_app_lock.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:universal_html/prefer_universal/html.dart' as html;
 
@@ -23,7 +26,12 @@ void main() async {
   FlutterError.onError = (FlutterErrorDetails details) =>
       Zone.current.handleUncaughtError(details.exception, details.stack);
   runZonedGuarded(
-    () => runApp(App()),
+    () => runApp(PlatformInfos.isMobile
+        ? AppLock(
+            builder: (args) => App(),
+            lockScreen: LockScreen(),
+          )
+        : App()),
     SentryController.captureException,
   );
 }