add loading

flutter_hbb/lib/main.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'common.dart';
 import 'home_page.dart';
+import 'package:flutter_easyloading/flutter_easyloading.dart';
 
 void main() {
   runApp(App());
@@ -19,7 +20,7 @@ class App extends StatelessWidget {
             primarySwatch: Colors.blue,
             visualDensity: VisualDensity.adaptivePlatformDensity,
           ),
-          home: HomePage(title: 'RustDesk'),
+          home: FlutterEasyLoading(child: HomePage(title: 'RustDesk')),
         ));
   }
 }