minor cleanup

frontend/pshared/lib/data/dto/invitation/invitation.dart

@@ -5,12 +5,12 @@ import 'package:pshared/data/dto/permissions/bound.dart';
 
 part 'invitation.g.dart';
 
+
 @JsonSerializable()
 class InvitationContentDTO {
   final String email;
   final String name;
   @JsonKey(defaultValue: '')
-  //TODO remove when backend will accept lastName
   final String lastName;
   final String comment;