merge material 3

lib/app.dart

@@ -25,7 +25,7 @@ import 'package:fcs/pages/main/splash_page.dart';
 import 'package:fcs/pages/staff/model/staff_model.dart';
 import 'package:fcs/pages/term/model/term_model.dart';
 import 'package:fcs/pages/main/welcome_page.dart';
-import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:provider/provider.dart';
 
@@ -136,9 +136,17 @@ class _AppState extends State<App> {
         ],
         child: Consumer<LanguageModel>(
           builder: (context, value, child) {
-            return CupertinoApp(
+            return MaterialApp(
                 debugShowCheckedModeBanner: false,
-                theme: CupertinoThemeData(),
+                theme: ThemeData(
+                  // useMaterial3: false,
+                  dividerTheme: DividerThemeData(color: Colors.grey.shade200),
+                  colorScheme: ColorScheme.light(primary: Colors.white),
+                  dialogTheme: DialogTheme(
+                      backgroundColor: Colors.white,
+                      shape: RoundedRectangleBorder(
+                          borderRadius: BorderRadius.circular(10))),
+                ),
                 title: widget.title,
                 routes: route(context),
                 localizationsDelegates: [