✨ Add caching for icons with an image proxy

Fixes #307

src/pages/api/imageproxy.ts

@@ -0,0 +1,10 @@
+import { NextApiRequest, NextApiResponse } from 'next';
+
+export default async (req: NextApiRequest, res: NextApiResponse) => {
+  const url = decodeURIComponent(req.query.url as string);
+  const result = await fetch(url);
+  const body = await result.body;
+  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+  // @ts-ignore
+  body.pipe(res);
+};