feat : search and filter in buyer out of the province

packages/core/lib/utils/network/safe_call_utils.dart

@@ -28,7 +28,7 @@ class ApiHandler {
 }
 
 typedef AppAsyncCallback<T> = Future<T> Function();
-typedef ErrorCallback = void Function(dynamic error, StackTrace? stackTrace);
+typedef ErrorCallback = Function(dynamic error, StackTrace? stackTrace);
 typedef VoidCallback = void Function();
 
 /// this is global safe call function

packages/core/lib/utils/string_utils.dart

@@ -1,7 +1,7 @@
 import 'package:intl/intl.dart';
 
 extension XString on String {
-  get separatedByComma {
+ String get separatedByComma {
     final formatter = NumberFormat('#,###');
     return formatter.format(this);
   }