[ELEMENT] Add custom Jitsi (jitsi.auro.re)

riot/config.json

@@ -51,5 +51,8 @@
     "settingDefaults": {
         "breadcrumbs": true
     },
+	"jitsi": {
+		"preferredDomain": "jitsi.auro.re"
+	},
     "disable_custom_urls": true
 }