feat: complate websocket plugin

packages/plugins/public/js/message.js

@@ -0,0 +1,10 @@
+$._messengerDefaults = {
+    extraClasses: 'messenger-fixed messenger-theme-future messenger-on-top messenger-on-right'
+};
+var showMessenger = function(message, type) {
+    return Messenger().post({
+        message: message,
+        type: type || 'info',
+        showClo6seButton: true
+    });
+};