add material icons local to the project

frontend/public/index.html

@@ -4,7 +4,6 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <link href="https://fonts.googleapis.com/css?family=Material+Icons" rel="stylesheet">
     <link rel="icon" href="<%= BASE_URL %>favicon.ico">
     <title>MetageneDB</title>
   </head>

frontend/src/assets/styles/fonts.css

+@font-face {
+  font-family: 'Material Icons';
+  font-style: normal;
+  font-weight: 400;
+  src: url(../fonts/material-icons.woff2) format('woff2');
+}
+
+.material-icons {
+  font-family: 'Material Icons';
+  font-weight: normal;
+  font-style: normal;
+  font-size: 24px;
+  line-height: 1;
+  letter-spacing: normal;
+  text-transform: none;
+  display: inline-block;
+  white-space: nowrap;
+  word-wrap: normal;
+  direction: ltr;
+  -moz-font-feature-settings: 'liga';
+  -moz-osx-font-smoothing: grayscale;
+}

frontend/src/main.js

@@ -5,6 +5,7 @@ import router from './router';
 import store from './store';
 import './registerServiceWorker';
 import 'vuetify/dist/vuetify.min.css';
+import './assets/styles/fonts.css';
 
 Vue.config.productionTip = false;
 Vue.use(Vuetify, {