refactor all [setByName] [getByName] to async bridge function

flutter/lib/desktop/pages/connection_page.dart

@@ -825,10 +825,34 @@ class WebMenu extends StatefulWidget {
 }
 
 class _WebMenuState extends State<WebMenu> {
+  String? username;
+  String url = "";
+
+  @override
+  void initState() {
+    super.initState();
+    () async {
+      final usernameRes = await getUsername();
+      final urlRes = await getUrl();
+      var update = false;
+      if (usernameRes != username) {
+        username = usernameRes;
+        update = true;
+      }
+      if (urlRes != url) {
+        url = urlRes;
+        update = true;
+      }
+
+      if (update) {
+        setState(() {});
+      }
+    }();
+  }
+
   @override
   Widget build(BuildContext context) {
     Provider.of<FfiModel>(context);
-    final username = getUsername();
     return PopupMenuButton<String>(
         icon: Icon(Icons.more_vert),
         itemBuilder: (context) {
@@ -846,7 +870,7 @@ class _WebMenuState extends State<WebMenu> {
                   value: "server",
                 )
               ] +
-              (getUrl().contains('admin.rustdesk.com')
+              (url.contains('admin.rustdesk.com')
                   ? <PopupMenuItem<String>>[]
                   : [
                       PopupMenuItem(

flutter/lib/desktop/pages/desktop_home_page.dart

@@ -275,9 +275,7 @@ class _DesktopHomePageState extends State<DesktopHomePage> with TrayListener {
                       ),
                       IconButton(
                         icon: Icon(Icons.refresh),
-                        onPressed: () {
-                          gFFI.setByName("temporary_password");
-                        },
+                        onPressed: () => bind.mainUpdateTemporaryPassword(),
                       ),
                       FutureBuilder<Widget>(
                           future: buildPasswordPopupMenu(context),
@@ -360,7 +358,7 @@ class _DesktopHomePageState extends State<DesktopHomePage> with TrayListener {
                               if (gFFI.serverModel.temporaryPasswordLength !=
                                   e) {
                                 gFFI.serverModel.temporaryPasswordLength = e;
-                                gFFI.setByName("temporary_password");
+                                bind.mainUpdateTemporaryPassword();
                               }
                             },
                           ))
@@ -1336,8 +1334,8 @@ Future<bool> loginDialog() async {
   return completer.future;
 }
 
-void setPasswordDialog() {
-  final pw = gFFI.getByName("permanent_password");
+void setPasswordDialog() async {
+  final pw = await bind.mainGetPermanentPassword();
   final p0 = TextEditingController(text: pw);
   final p1 = TextEditingController(text: pw);
   var errMsg0 = "";
@@ -1427,7 +1425,7 @@ void setPasswordDialog() {
                 });
                 return;
               }
-              gFFI.setByName("permanent_password", pass);
+              bind.mainSetPermanentPassword(password: pass);
               close();
             },
             child: Text(translate("OK"))),

flutter/lib/desktop/pages/remote_page.dart

@@ -348,8 +348,9 @@ class _RemotePageState extends State<RemotePage>
             if (dy > 0)
               dy = -1;
             else if (dy < 0) dy = 1;
-            _ffi.setByName('send_mouse',
-                '{"id": "${widget.id}", "type": "wheel", "x": "$dx", "y": "$dy"}');
+            bind.sessionSendMouse(
+                id: widget.id,
+                msg: '{"type": "wheel", "x": "$dx", "y": "$dy"}');
           }
         },
         child: MouseRegion(

flutter/lib/desktop/widgets/peercard_widget.dart

@@ -187,7 +187,7 @@ class _PeerCardState extends State<_PeerCard>
       elevation: 8,
     );
     if (value == 'remove') {
-      setState(() => gFFI.setByName('remove', '$id'));
+      setState(() => bind.mainRemovePeer(id: id));
       () async {
         removePreference(id);
       }();