Remake dashboard

Optimize theme

Optimize more details

Update flutter version

lib/common/context.dart

@@ -1,13 +1,17 @@
+import 'package:fl_clash/manager/manager.dart';
 import 'package:fl_clash/widgets/scaffold.dart';
 import 'package:flutter/material.dart';
 
 extension BuildContextExtension on BuildContext {
-
   CommonScaffoldState? get commonScaffoldState {
     return findAncestorStateOfType<CommonScaffoldState>();
   }
 
-  Size get appSize{
+  showNotifier(String text) {
+    return findAncestorStateOfType<MessageManagerState>()?.message(text);
+  }
+
+  Size get appSize {
     return MediaQuery.of(this).size;
   }