Refactor components and styles.

pages/website/[...id].js

@@ -0,0 +1,19 @@
+import React from 'react';
+import { useRouter } from 'next/router';
+import Layout from 'components/Layout';
+import WebsiteDetails from '../../components/WebsiteDetails';
+
+export default function DetailsPage() {
+  const router = useRouter();
+  const { id } = router.query;
+
+  if (!id) {
+    return null;
+  }
+
+  return (
+    <Layout>
+      <WebsiteDetails websiteId={+id[0]} />
+    </Layout>
+  );
+}