Show progress on route change

.vitepress/theme/index.ts

@@ -1,11 +1,14 @@
 import { type Theme } from "vitepress";
 import DefaultTheme from "vitepress/theme";
 import Layout from "./Layout.vue";
+import { loadProgress } from "./composables/nprogress";
 import "./style.css";
 import "uno.css";
 
 export default {
   extends: DefaultTheme,
   Layout,
-  enhanceApp({ app, router, siteData }) {},
+  enhanceApp({ router }) {
+    loadProgress(router);
+  },
 } satisfies Theme;