try to do better

backend/src/services/expense_service.rs

@@ -153,7 +153,6 @@ impl ExpenseService {
             .map(|((year, month), expenses)| {
                 let total_amount: Decimal = expenses
                     .iter()
-                    .filter(|e| e.active)
                     .map(|e| e.amount)
                     .sum();
                 MonthlyExpenseGroup {