update dir ; move settings from main page to settings_page

lib/models/chat_model.dart

@@ -0,0 +1,5 @@
+import 'package:flutter/material.dart';
+
+class ChatModel with ChangeNotifier {
+
+}

lib/models/model.dart

@@ -692,11 +692,12 @@ extension ToString on MouseButtons{
 
 
 class FFI {
-  static String id = "";
+  static var id = "";
   static var shift = false;
   static var ctrl = false;
   static var alt = false;
   static var command = false;
+  static var version = "";
   static final imageModel = ImageModel();
   static final ffiModel = FfiModel();
   static final cursorModel = CursorModel();
@@ -823,10 +824,6 @@ class FFI {
     PlatformFFI.setByName(name, value);
   }
 
-  static Future<String> getVersion() async {
-    return await PlatformFFI.getVersion();
-  }
-
   static handleMouse(Map<String, dynamic> evt) {
     var type = '';
     var isMove = false;

lib/models/native_model.dart

@@ -107,6 +107,7 @@ class PlatformFFI {
     } catch (e) {
       print(e);
     }
+    version = await getVersion();
   }
 
   static void startDesktopWebListener(