Fixed and added auto build project

.github/workflows/dart.yml

@@ -0,0 +1,35 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Dart
+
+on:
+  push:
+    branches: [ "live" ]
+  pull_request:
+    branches: [ "live" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v2
+
+      - name: Install dependencies
+        run: flutter pub get 
+
+      - name: Analyze project source
+        run: flutter build web
+
+      - name: Upload a Build Artifact
+        uses: actions/[email protected]
+        with:
+          path: ./build/web
+
+

lib/app_theme.dart

@@ -2,7 +2,8 @@ import 'package:flutter/material.dart';
 
 class AppTheme {
   static ThemeData of(BuildContext context) {
-    return Theme.of(context).copyWith(
+    return ThemeData(
+      useMaterial3: true,
       appBarTheme: const AppBarTheme(centerTitle: false),
     );
   }