fix(ui): code highlight issue

frontend/public/index.html

@@ -13,8 +13,6 @@
       window.VUE_APP_INIT_BAIDU_TONGJI = '<%= VUE_APP_INIT_BAIDU_TONGJI %>';
   </script>
   <script src="/js/vue3-sfc-loader.js"></script>
-  <script src="simplemde/simplemde.js"></script>
-  <link href="simplemde/simplemde.css" rel="stylesheet">
   <style>
       #loading-placeholder {
           position: fixed;