bill product flow bug fixes

lib/screens/transaction_controller.g.dart

@@ -29,6 +29,7 @@ _FormData _$FormDataFromJson(Map<String, dynamic> json) => _FormData(
   debitPhone: json['debitPhone'] as String?,
   debitAccount: json['debitAccount'] as String?,
   productUid: json['productUid'] as String?,
+  billProductName: json['billProductName'] as String?,
   trace: json['trace'] as String?,
   authType: json['authType'] as String?,
   charge: json['charge'] as String?,
@@ -60,6 +61,7 @@ Map<String, dynamic> _$FormDataToJson(_FormData instance) => <String, dynamic>{
   'debitPhone': instance.debitPhone,
   'debitAccount': instance.debitAccount,
   'productUid': instance.productUid,
+  'billProductName': instance.billProductName,
   'trace': instance.trace,
   'authType': instance.authType,
   'charge': instance.charge,