(demo) add typings example

Author: antoine92190

demo/src/ChatContainer.vue

@@ -78,7 +78,7 @@ import {
 } from '@/firestore'
 import { parseTimestamp, isSameDay } from '@/utils/dates'
 import ChatWindow from './../../src/ChatWindow'
-
+// import ChatWindow, { Rooms } from 'vue-advanced-chat'
 // import ChatWindow from 'vue-advanced-chat'
 // import 'vue-advanced-chat/dist/vue-advanced-chat.css'
 // import ChatWindow from './../../dist/vue-advanced-chat.umd.min.js'