utils cleanup, initial static generation

src/utils/proxy/cached-fetch.js

@@ -0,0 +1,13 @@
+import cache from "memory-cache";
+
+export default async function cachedFetch(url, duration) {
+  const cached = cache.get(url);
+
+  if (cached) {
+    return cached;
+  }
+
+  const data = await fetch(url).then((res) => res.json());
+  cache.put(url, data, duration * 1000 * 60);
+  return data;
+}