app update for ribbon testing

frontend/src/App.vue

 <template>
   <div id="app">
-    <div id="nav">
-      <router-link to="/">Home</router-link> |
-      <router-link to="/about">About</router-link>
-    </div>
     <router-view/>
   </div>
 </template>
@@ -29,4 +25,8 @@
 #nav a.router-link-exact-active {
   color: #42b983;
 }
+
+html{
+  background-color: black;
+};
 </style>