link prefetching

src/routes/index.svelte

@@ -1,7 +1,7 @@
 <script context="module">
     export async function load({ fetch }) {
         const resp = await fetch('/latest.json');
-        const metadata = (await resp.json());
+        const metadata = await resp.json();
         const post = await import(`./_posts/${metadata.slug}.svx`);
         return {
             props: {