stacked bar graph, edit / remove transaction & budget page base

lib/domains/budget/budget_bloc.dart

@@ -0,0 +1,10 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+part 'budget_event.dart';
+part 'budget_state.dart';
+
+class BudgetBloc extends Bloc<BudgetEvent, BudgetState> {
+  BudgetBloc(super.initialState);
+
+}

lib/domains/budget/budget_event.dart

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+part of 'budget_bloc.dart';
+
+sealed class BudgetEvent extends Equatable {
+  const BudgetEvent();
+
+  @override
+  List<Object> get props => [];
+}

lib/domains/budget/budget_state.dart

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+part of 'budget_bloc.dart';
+
+final class BudgetState extends Equatable {
+  @override
+  List<Object?> get props => [];
+}