small fix to prev commit

resources/js/components/pages/MeetingsAppRoot.vue

@@ -12,7 +12,7 @@
                 <v-expansion-panel-header>
                     <span>Meeting Room</span>
                     <v-spacer></v-spacer>
-                    <v-btn color="purple" small ripple outlined class="mr-3" @click.stop="leaveMeeting">Leave</v-btn>
+                    <v-btn v-if="meeting.uid" color="purple" small ripple outlined class="mr-3" @click.stop="leaveMeeting">Leave</v-btn>
                 </v-expansion-panel-header>
                 <v-expansion-panel-content>
                     <meeting-room></meeting-room>