目录-目录-菜单结构引发的样式布局问题，以及设备仪表盘修改

package.json

@@ -60,6 +60,7 @@
     "node-sass": "^4.9.0",
     "runjs": "^4.3.2",
     "sass-loader": "^7.1.0",
+    "screenfull": "^5.1.0",
     "script-ext-html-webpack-plugin": "2.1.3",
     "serve-static": "^1.13.2",
     "stylus": "^0.54.7",

src/views/navigation.vue

+<template>
+  <router-view></router-view>
+</template>
+<script>
+export default {
+  name: 'Navigation'
+}
+</script>