add code highlight

src/main.ts

@@ -1,7 +1,8 @@
 import { createApp, defineAsyncComponent } from "vue";
+import { Dialog, Notify, Quasar, Loading } from "quasar";
+import "highlight.js/styles/stackoverflow-light.css";
 import App from "./App.vue";
 import router from "./router";
-import { Dialog, Notify, Quasar, Loading } from "quasar";
 import quasarUserOptions from "./quasar-user-options";
 
 import "quasar/src/css/index.sass";