升级Vue3，iView替换ElementPlus

- 删除babel配置、更新依赖与入口初始化
- 全量替换UI组件、样式适配，新增迁移文档与标签/过滤器自动化替换脚本

seller/public/index.html

@@ -72,7 +72,7 @@
     <script src="<%=js%>"></script>
     <% } %>
     <script src="/config.js"></script>
-    <script src="./tinymce/tinymce.min.js"></script>
+    <script src="/tinymce/tinymce.min.js"></script>
     <noscript>
       <strong
         >We're sorry  doesn't work properly without JavaScript