Fix #44, additional minor enhncements

src/routes/+page.ts

@@ -1,8 +1,11 @@
 import type { Post } from '$lib/mastodon/response';
 import type { PageLoad } from './$types';
 
-export const load = (async ({ fetch }) => {
+export const load = (async ({ fetch, setHeaders }) => {
   const p = await fetch('/');
+  setHeaders({
+    'cache-control': 'public,max-age=60'
+  });
   return {
     posts: (await p.json()) as Post[]
   };