Try this

docs/.vitepress/components/HomeHeroIconsCard.vue

@@ -32,11 +32,12 @@ function insert() {
   items.value[replaceIndex] = newIcon
 }
 
-onMounted(() => {
-  intervalTime.value = setInterval(() => {
-    insert()
-  }, 2000)
-})
+// TODO: Try maybe something else for better pref performance
+// onMounted(() => {
+//   intervalTime.value = setInterval(() => {
+//     insert()
+//   }, 2000)
+// })
 
 onBeforeUnmount(() => {
   clearInterval(intervalTime.value)

scripts/writeVercelOutput.mjs

@@ -6,14 +6,25 @@ const currentDir = process.cwd();
 const vercelRouteConfig = {
   version: 3,
   overrides: {},
+  // cleanUrls: true,
   routes: [
     {
       handle: 'filesystem',
     },
+    {
+      source: '/icon/:path*',
+      destination: '/icons/:path*',
+      permanent: true,
+    },
     {
       src: '(?<url>/api/.*)',
       dest: '/__nitro?url=$url',
     },
+    {
+      src: '/(.*)',
+      status: 404,
+      dest: '/404.html',
+    },
   ],
 };
 

vercel.json

@@ -1,10 +0,0 @@
-{
-  "cleanUrls" : true,
-  "redirects": [
-    {
-      "source": "/icon/:path*",
-      "destination":"/icons/:path*",
-      "permanent": true
-    }
-  ]
-}