Fix broken window.location.href on NextJS server

web/pages/404.tsx

@@ -1,18 +1,13 @@
+import { useEffect } from 'gridjs'
 import { Page } from '../components/page'
 import { Title } from '../components/title'
 
 export default function Custom404() {
-  // Get the current URL from the window
-  const url = window.location.href
-
   return (
     <Page>
       <div className="flex flex-col items-center justify-center h-full">
         <Title text="404: Oops!" />
-        <p>
-          Nothing exists at
-          <span className="p-2 font-mono">{url}</span>
-        </p>
+        <p>Nothing exists at this location.</p>
         <p>If you didn't expect this, let us know on Discord!</p>
         <br />
         <iframe