added option to attach image to feedback

lib/api/mhsl/server/feedback/addFeedbackParams.dart

@@ -6,12 +6,14 @@ part 'addFeedbackParams.g.dart';
 class AddFeedbackParams {
   String user;
   String feedback;
+  String? screenshot;
   int appVersion;
 
 
   AddFeedbackParams({
     required this.user,
     required this.feedback,
+    this.screenshot,
     required this.appVersion,
   });
 

lib/api/mhsl/server/feedback/addFeedbackParams.g.dart

@@ -10,6 +10,7 @@ AddFeedbackParams _$AddFeedbackParamsFromJson(Map<String, dynamic> json) =>
     AddFeedbackParams(
       user: json['user'] as String,
       feedback: json['feedback'] as String,
+      screenshot: json['screenshot'] as String?,
       appVersion: json['appVersion'] as int,
     );
 
@@ -17,5 +18,6 @@ Map<String, dynamic> _$AddFeedbackParamsToJson(AddFeedbackParams instance) =>
     <String, dynamic>{
       'user': instance.user,
       'feedback': instance.feedback,
+      'screenshot': instance.screenshot,
       'appVersion': instance.appVersion,
     };