Reduce polling (#2465)

* Move profile and preference polling to polls-on-foreground

* Refetch prefs on feeds screen refresh since polling no longer occurs

* Reduce notifications polling by 50% if there's already an unread

* Disable feed polling if we know we have content

* Disable the hard refresh after 1 hour in case it's the cause of the random feed refresh bug

* Fix types

src/state/queries/preferences/index.ts

@@ -31,7 +31,7 @@ export function usePreferencesQuery() {
   return useQuery({
     staleTime: STALE.SECONDS.FIFTEEN,
     structuralSharing: true,
-    refetchInterval: STALE.SECONDS.FIFTEEN,
+    refetchOnWindowFocus: true,
     queryKey: preferencesQueryKey,
     queryFn: async () => {
       const agent = getAgent()