added more blocs

lib/domains/category/category_bloc.dart

@@ -0,0 +1,27 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:tunas/repositories/account/account_repository.dart';
+import 'package:tunas/repositories/account/models/category.dart';
+
+part 'category_event.dart';
+part 'category_state.dart';
+
+class CategoryBloc extends Bloc<CategoryEvent, CategoryState> {
+  final AccountRepository _accountRepository;
+
+  CategoryBloc({required AccountRepository accountRepository}) : _accountRepository = accountRepository, super(const CategoryState())  {
+    on<CategoriesLoad>(_onCategoriesLoad);
+
+    _accountRepository
+      .getCategoriesStream()
+      .listen((categories) => add(CategoriesLoad(categories)));
+  }
+
+  _onCategoriesLoad(
+    CategoriesLoad event, Emitter<CategoryState> emit
+  ) {
+    emit(state.copyWith(
+      categories: event.categories,
+    ));
+  }
+}