Improved json auto save & budget mobile UI

lib/pages/budgets/widgets/budget_compare_selector.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:intl/intl.dart';
+import 'package:tunas/domains/budget/budget_bloc.dart';
+
+class BudgetCompareSelector extends StatelessWidget {
+  const BudgetCompareSelector({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<BudgetBloc, BudgetState>(
+      builder: (context, state) => Row(
+        mainAxisAlignment: MainAxisAlignment.end,
+        children: [
+          IconButton(
+            onPressed: () => context.read<BudgetBloc>().add(BudgetComparePrevious()),
+            icon: const Icon(Icons.skip_previous)
+          ),
+          Text('${NumberFormat('00', 'fr_FR').format(state.compareMonth)} - ${state.compareYear}'),
+          IconButton(
+            onPressed: () => context.read<BudgetBloc>().add(BudgetCompareNext()),
+            icon: const Icon(Icons.skip_next)
+          ),
+        ],
+      )
+    );
+  }
+}