添加后台管理框架雏形

frontend/src/App.vue

@@ -0,0 +1,14 @@
+<template>
+    <el-config-provider :locale="zhCn">
+        <router-view />
+    </el-config-provider>
+</template>
+
+<script setup lang="ts">
+import { ElConfigProvider } from 'element-plus';
+import zhCn from 'element-plus/es/locale/lang/zh-cn';
+</script>
+<style>
+@import './assets/css/main.css';
+@import './assets/css/color-dark.css';
+</style>