Update GroupList.js

I reproduced a bug that localy.
On my device, The groups JID's are LID's.
I saw that PhoneNumber has the right data that matches.

Signed-off-by: ilanbenb <12747039+ilanbenb@users.noreply.github.com>

src/views/components/GroupList.js

@@ -89,7 +89,7 @@ export default {
             
             // Check if current user is an admin in participants
             const currentUserJID = `${this.currentUserId}@s.whatsapp.net`;
-            const participant = group.Participants.find(p => p.JID === currentUserJID);
+            const participant = group.Participants.find(p => p.PhoneNumber === currentUserJID);
             return participant && participant.IsAdmin;
         },
         async handleSeeRequestedMember(group_id) {
@@ -250,4 +250,4 @@ export default {
         </div>
     </div>
     `
-}
+}