Add QrCode authentication

moneymgr_mobile/lib/services/router/router.dart

@@ -4,6 +4,7 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:moneymgr_mobile/providers/auth_state.dart';
 import 'package:moneymgr_mobile/routes/login/login_screen.dart';
 import 'package:moneymgr_mobile/routes/login/manual_auth_screen.dart';
+import 'package:moneymgr_mobile/routes/login/qr_auth_screen.dart';
 import 'package:moneymgr_mobile/routes/settings/settings_screen.dart';
 import 'package:moneymgr_mobile/services/router/routes_list.dart';
 import 'package:moneymgr_mobile/widgets/scaffold_with_navigation.dart';
@@ -61,6 +62,7 @@ GoRouter router(Ref ref) {
     routes: [
       GoRoute(path: homePage, builder: (_, __) => const Scaffold()),
       GoRoute(path: authPage, builder: (_, __) => const LoginScreen()),
+      GoRoute(path: qrAuthPath, builder: (_, __) => const QrAuthScreen()),
       GoRoute(
         path: manualAuthPage,
         builder: (_, __) => const ManualAuthScreen(),

moneymgr_mobile/lib/services/router/routes_list.dart

@@ -4,6 +4,9 @@ const homePage = "/";
 /// Authentication path
 const authPage = "/login";
 
+/// Qr Code authentication
+const qrAuthPath = "/login/qr";
+
 /// Manual authentication
 const manualAuthPage = "/login/manual";
 

moneymgr_mobile/lib/services/storage/secure_storage.dart

@@ -51,6 +51,7 @@ class SecureStorage {
     if (tokenStr != null) {
       return ApiToken.fromJson(jsonDecode(tokenStr));
     }
+    return null;
   }
 
   /// Set auth token