(fix) go back to rooms list if room doesn't exist

Author: antoine92190

src/ChatWindow/ChatWindow.vue

@@ -125,7 +125,12 @@ export default {
 		rooms: {
 			immediate: true,
 			handler(newVal, oldVal) {
-				if (!newVal[0]) return (this.showRoomsList = true)
+				if (
+					!newVal[0] ||
+					!newVal.find(room => room.roomId === this.room.roomId)
+				) {
+					this.showRoomsList = true
+				}
 
 				if (newVal[0] && (!oldVal || newVal.length !== oldVal.length)) {
 					if (this.roomId) {