fix(replay) - fix use fetch parallel pages

[jerryzhou196]

When building the background refresh, Billy and I encountered some bugs with useFetchParallelPages.

a. It doesn't refetch with a different hits value:

1. (First call) useFetchParallelPages({hits = 12, perPage = 100}), then we would have pages=1
2. (Second call) useFetchParallelPages({hits = 15, perPage = 100}), then we would still have pages=1 and the old version of cursors. The useEffect later wouldn't run fetch() on re-render when it should.

[linear]

REPLAY-553 Live Updating Replay Details When Replay is Not "Done"

[ryan953]

This should mean that we're getting into the useMemo more often (because hits will change more often than pages did) and thus we'll get a new array to process!

LG!