fixes

frontend/pweb/lib/controllers/operations/report_operations.dart

@@ -1,7 +1,7 @@
-import 'dart:collection';
-
 import 'package:flutter/material.dart';
 
+import 'package:collection/collection.dart';
+
 import 'package:pshared/models/payment/operation.dart';
 import 'package:pshared/models/payment/payment.dart';
 import 'package:pshared/models/payment/source_type.dart';
@@ -131,16 +131,14 @@ class ReportOperationsController extends ChangeNotifier {
   bool _matchesCurrentSource(Payment payment) {
     final sourceType = _sourceType;
     if (sourceType == null || _sourceRefs.isEmpty) return true;
-    for (final sourceRef in _sourceRefs) {
-      if (paymentMatchesSource(
-        payment,
-        sourceType: sourceType,
-        sourceRef: sourceRef,
-      )) {
-        return true;
-      }
-    }
-    return false;
+    return _sourceRefs.firstWhereOrNull(
+          (sourceRef) => paymentMatchesSource(
+            payment,
+            sourceType: sourceType,
+            sourceRef: sourceRef,
+          ),
+        ) !=
+        null;
   }
 
   Set<String> _normalizeRefs(List<String> refs) {