Enable ISR on feed pages with 60s revalidation

This should allow pages to pick up changes to feeds table without having
to rebuild the frontend

ui/src/pages/listen/[feed].tsx

@@ -100,6 +100,7 @@ export async function getStaticProps({ params }: { params: { feed: string } }) {
     props: {
       dehydratedState: dehydrate(queryClient),
     },
+    revalidate: 60,
   };
 }