fix #1292, fix #1829 enable video chat in ms teams

app/store/ServicesList.js

@@ -691,6 +691,7 @@ Ext.define('Rambox.store.ServicesList', {
 			,url: 'https://teams.microsoft.com'
 			,type: 'messaging'
 			,userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.2883.87 Safari/537.36'
+			,js_unread: 'navigator.__defineGetter__("userAgent", function(){ return "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.2883.87 Safari/537.36 Edge/12.246"; });'
 		},
 		{
 			 id: 'kezmo'