feat: improve webui (#221)

* feat: improve web ui

* feat: log json msg of gewechat

* feat: update webui status text

* refactor: add check online function

* feat: update qrcode image after restarting

* feat: switch image and control area

* feat: update web name

* feat: update webui theme

* feat: add logout button

* feat: logout confirm

* feat: restart confirm

* chore: delete unused comment of web ui

* feat: add refresh login status button

* feat: update button name and status text

* feat: finish logout

channel/gewechat/gewechat_channel.py

@@ -174,8 +174,9 @@ def GET(self):
 
     def POST(self):
         channel = GeWeChatChannel()
-        data = json.loads(web.data())
-        logger.debug("[gewechat] receive data: {}".format(data))
+        web_data = web.data()
+        logger.debug("[gewechat] receive data: {}".format(web_data))
+        data = json.loads(web_data)
 
         # gewechat服务发送的回调测试消息
         if isinstance(data, dict) and 'testMsg' in data and 'token' in data: