Add quick actions

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:flutter_background_geolocation/flutter_background_geolocation.dart' as bg;
+import 'package:traccar_client/quick_actions.dart';
 
 import 'main_screen.dart';
 import 'preferences.dart';
@@ -25,7 +26,12 @@ class MainApp extends StatelessWidget {
           seedColor: Colors.green,
         ),
       ),
-      home: MainScreen(),
+      home: Stack(
+        children: const [
+          QuickActionsInitializer(),
+          MainScreen(),
+        ],
+      ),
     );
   }
 }