TF-2068 Remove the comma of the last attendee in EventAttendeeDetailWidget

(cherry picked from commit 48906b1ac2d0e1ef978e410b0ba2719769c7fa19)

lib/features/email/presentation/widgets/calendar_event/attendee_widget.dart

@@ -6,10 +6,12 @@ import 'package:tmail_ui_user/features/email/presentation/styles/attendee_widget
 class AttendeeWidget extends StatelessWidget {
 
   final CalendarAttendee attendee;
+  final List<CalendarAttendee> listAttendees;
 
   const AttendeeWidget({
     super.key,
-    required this.attendee
+    required this.attendee,
+    required this.listAttendees,
   });
 
   @override
@@ -33,7 +35,8 @@ class AttendeeWidget extends StatelessWidget {
                 fontWeight: FontWeight.w500
               ),
             ),
-          const TextSpan(text: ', '),
+          if (listAttendees.last != attendee)
+            const TextSpan(text: ', '),
         ]
       )
     );

lib/features/email/presentation/widgets/calendar_event/event_attendee_detail_widget.dart

@@ -61,7 +61,7 @@ class _EventAttendeeDetailWidgetState extends State<EventAttendeeDetailWidget> {
           children: [
             OrganizerWidget(organizer: widget.organizer),
             ..._attendeesDisplayed
-                .map((attendee) => AttendeeWidget(attendee: attendee))
+                .map((attendee) => AttendeeWidget(attendee: attendee, listAttendees: _attendeesDisplayed))
                 .toList(),
             if (!_isShowAllAttendee)
               Padding(