add admin

admin/src/App.vue

@@ -0,0 +1,34 @@
+<template>
+  <img src="./assets/logo.png">
+  <div>
+    <p>
+      If Element Plus is successfully added to this project, you'll see an
+      <code v-text="'<el-button>'"></code>
+      below
+    </p>
+    <el-button type="primary">el-button</el-button>
+  </div>
+  <HelloWorld msg="Welcome to Your Vue.js App"/>
+</template>
+
+<script>
+import HelloWorld from './components/HelloWorld.vue'
+
+export default {
+  name: 'App',
+  components: {
+    HelloWorld
+  }
+}
+</script>
+
+<style>
+#app {
+  font-family: Avenir, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-align: center;
+  color: #2c3e50;
+  margin-top: 60px;
+}
+</style>