restructured the application

added .end files
switched to BLoC state-management
removed unnecessary helpers
initialized Scenes Page

lib/features/smart/bloc/smart_cubit.dart

@@ -0,0 +1,8 @@
+import 'package:bloc/bloc.dart';
+import 'package:meta/meta.dart';
+
+part 'smart_state.dart';
+
+class SmartCubit extends Cubit<SmartState> {
+  SmartCubit() : super(SmartInitial());
+}

lib/features/smart/bloc/smart_state.dart

@@ -0,0 +1,6 @@
+part of 'smart_cubit.dart';
+
+@immutable
+abstract class SmartState {}
+
+class SmartInitial extends SmartState {}