New comments section in the requests/responses

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

@@ -23,6 +23,7 @@ class PaymentIntentDTO {
   final String? feeTreatment;
 
   final Map<String, String>? attributes;
+  final String? comment;
   final CustomerDTO? customer;
 
   const PaymentIntentDTO({
@@ -33,10 +34,12 @@ class PaymentIntentDTO {
     this.fx,
     this.settlementMode,
     this.attributes,
+    this.comment,
     this.customer,
     this.feeTreatment,
   });
 
-  factory PaymentIntentDTO.fromJson(Map<String, dynamic> json) => _$PaymentIntentDTOFromJson(json);
+  factory PaymentIntentDTO.fromJson(Map<String, dynamic> json) =>
+      _$PaymentIntentDTOFromJson(json);
   Map<String, dynamic> toJson() => _$PaymentIntentDTOToJson(this);
 }