style:增加左侧导航及头部导航栏

src/main.js

@@ -0,0 +1,13 @@
+import { createApp } from 'vue'
+import App from './App.vue'
+import router from './router'
+import store from './store'
+import ElementPlus from 'element-plus'
+import 'element-plus/dist/index.css'
+import zhCn from 'element-plus/es/locale/lang/zh-cn'
+import "@/assets/scss/common.scss"
+const app = createApp(App)
+app.use(store).use(router).mount('#app')
+app.use(ElementPlus, {
+	locale: zhCn,
+})