refactor: remove '!' from server url

Author: 0xlws

utils/server.js

@@ -7,4 +7,4 @@ app.use('/external', express.static('external'))
 app.use('/editor', express.static('editor'))
 app.use('/', express.static('editor'))
 
-app.listen(8000, () => console.log('Example app listening on http://127.0.0.1:8000!'))
+app.listen(8000, () => console.log('Example app listening on http://127.0.0.1:8000'))