fix build

Author: Leptopoda

Diff for: flutter-init.sh

@@ -27,5 +27,4 @@ mkdir -p "$ENV_FILE_PATH" || true
 touch "$ENV_FILE"
 export >"$ENV_FILE"
 
-flutter pub global activate build_runner
 flutter pub run build_runner build --delete-conflicting-outputs

Diff for: src/ui/flutter_app/pubspec.yaml

@@ -47,6 +47,7 @@ dependencies:
 dev_dependencies:
   build_runner: ^2.1.4
   copy_with_extension_gen: ^2.0.3
+  flutter_gen_runner: ^4.0.0
   flutter_oss_licenses: ^1.0.1
   flutter_test:
     sdk: flutter