Added programmer role and fixed snackbar not showing

lib/app.dart

@@ -8,6 +8,7 @@ import 'models/profile.dart';
 import 'providers/profile_provider.dart';
 import 'services/background_location_service.dart';
 import 'theme/app_theme.dart';
+import 'utils/snackbar.dart';
 
 class TasqApp extends ConsumerWidget {
   const TasqApp({super.key});
@@ -36,6 +37,7 @@ class TasqApp extends ConsumerWidget {
     return MaterialApp.router(
       title: 'TasQ',
       routerConfig: router,
+      scaffoldMessengerKey: scaffoldMessengerKey,
       theme: AppTheme.light(),
       darkTheme: AppTheme.dark(),
       themeMode: ThemeMode.system,