feat : sale in the province

packages/core/lib/utils/map_utils.dart

@@ -28,9 +28,8 @@ Map<String, dynamic> buildQueryParams({
     params['search'] = search;
   }
 
-  if (value != null) {
-    params['value'] = value;
-  }
+  params['value'] = value ?? '';
+
 
   if (page != null) {
     params['page'] = page;

packages/core/lib/utils/string_utils.dart

@@ -1,11 +1,13 @@
 import 'package:intl/intl.dart';
 
 extension XString on String {
- String get separatedByComma {
+  String get separatedByComma {
     final formatter = NumberFormat('#,###');
-    return formatter.format(this);
+    final number = num.tryParse(this);
+    return number != null ? formatter.format(number) : this;
   }
-  get clearComma{
+
+  get clearComma {
     return replaceAll(RegExp(r'\D'), '');
   }
 }