restucturization of recipients payment methods

frontend/pshared/lib/data/dto/payment/iban.dart

@@ -0,0 +1,22 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'iban.g.dart';
+
+
+@JsonSerializable()
+class IbanPaymentDataDTO {
+  final String iban;
+  final String accountHolder;
+  final String? bic;
+  final String? bankName;
+
+  const IbanPaymentDataDTO({
+    required this.iban,
+    required this.accountHolder,
+    this.bic,
+    this.bankName,
+  });
+
+  factory IbanPaymentDataDTO.fromJson(Map<String, dynamic> json) => _$IbanPaymentDataDTOFromJson(json);
+  Map<String, dynamic> toJson() => _$IbanPaymentDataDTOToJson(this);
+}