Enable ISR on feed pages with 60s revalidation (#622)

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,
  };
 }