Update 404 page for the new format

public/404.html

@@ -70,15 +70,15 @@
 <script>
     async function addFuzzySearch() {
         const vanityMap = await (await fetch("/vanitymap.json")).json()
-        const keys = Object.keys(vanityMap);
+        const keys = vanityMap['shortlinks'].map((object) => object.sources).flat(1)
         const fuse = new Fuse(keys, {})
         const pathToSearchFor = window.location.pathname.replace("/", "").replace(".html", "").trim();
         const results = fuse.search(pathToSearchFor)
         if (results.length !== 0) {
             const bestShortlink = results[0].item;
-            const bestHref = vanityMap[bestShortlink];
+            const bestHref = vanityMap['shortlinks'].filter((object) => object.sources.includes(bestShortlink))[0].destination;
 
-            document.getElementById("suggestion-text").innerText = bestShortlink;
+            document.getElementById("suggestion-text").innerText = "/" + bestShortlink;
             document.getElementById("suggestion-href").href = bestHref;
             document.getElementById("suggestion-section").classList.remove("is-invisible");
         }