fixing set merchant

lib/ui/pages/set_merchant.dart

@@ -287,6 +287,7 @@ class _SetMerchantState extends State<SetMerchant> {
 
   Future<void> showDialConfig() async {
     showDialog<String>(
+      barrierDismissible: false,
       context: context,
       builder: (BuildContext context) => Center(
         child: SingleChildScrollView(
@@ -570,6 +571,7 @@ class _SetMerchantState extends State<SetMerchant> {
                           String companyName = merchantNameController.text;
 
                           service.getMultiOutlet(urlDolan, companyName, userName).then((value) {
+
                             listMultiOutlet = value;
                             print("response multi outlet");
                             PreferencesHelper.setString('multioutletname', listMultiOutlet["multioutletname"]);