Start writing the web app

Signed-off-by: Nikolai Rodionov <allanger@posteo.com>

lib/features/dashboard/application/dashboard_application.dart

@@ -0,0 +1,30 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:softplayer_dart_proto/src/accounts/v1/accounts_v1.pbgrpc.dart';
+import 'package:softplayer_web/features/authorization/data/public_accounts_grpc_repository.dart';
+
+class DashboardState {
+  final bool authorized;
+
+  const DashboardState({this.authorized = false});
+  DashboardState copyWith({bool? authorized}) {
+    return DashboardState(authorized: authorized ?? this.authorized);
+  }
+}
+
+final dashboardControllerProvider =
+    AsyncNotifierProvider<DashboardController, DashboardState>(
+      DashboardController.new,
+    );
+
+class DashboardController extends AsyncNotifier<DashboardState> {
+  static const _storage = FlutterSecureStorage();
+  @override
+  Future<DashboardState> build() async {
+    final accessToken = await _storage.read(key: "x-access-token");
+    if (accessToken == null || accessToken.isEmpty) {
+      return const DashboardState(authorized: false);
+    }
+    return const DashboardState(authorized: true);
+  }
+}