Basic budget sliders

lib/domains/budget/budget_state.dart

@@ -1,20 +1,25 @@
 part of 'budget_bloc.dart';
 
-final class BudgetState extends Equatable {
+final class BudgetState {
   final List<Budget> budgets;
+  final double initialBudget;
+  final double remainingBudget;
 
   const BudgetState({
     this.budgets = const [],
+    this.initialBudget = 2300.0,
+    this.remainingBudget = 2300.0,
   });
 
   BudgetState copyWith({
     List<Budget>? budgets,
+    double? initialBudget,
+    double? remainingBudget,
   }) {
     return BudgetState(
       budgets: budgets ?? this.budgets,
+      initialBudget: initialBudget ?? this.initialBudget,
+      remainingBudget: remainingBudget ?? this.remainingBudget,
     );
   }
-
-  @override
-  List<Object?> get props => [budgets];
-}
+}