fix(xmpp): Moves event local user role changed after muc joined.

modules/xmpp/ChatRoom.js

             const newRole
                 = member.affiliation === 'owner' ? member.role : 'none';
 
-            if (this.role !== newRole) {
-                this.role = newRole;
-                this.eventEmitter.emit(
-                    XMPPEvents.LOCAL_ROLE_CHANGED,
-                    this.role);
-            }
             if (!this.joined) {
                 this.joined = true;
                 const now = this.connectionTimes['muc.joined']
                 !this.options.disableDiscoInfo && this.discoRoomInfo();
             }
 
+            if (this.role !== newRole) {
+                this.role = newRole;
+                this.eventEmitter.emit(
+                    XMPPEvents.LOCAL_ROLE_CHANGED,
+                    this.role);
+            }
+
             if (xElement && $(xElement).find('>status[code="110"]').length) {
                 // let's check for some backend forced permissions