search bar results: reviews, then pog count

The reviews container will be checked for the text "No reviews". If it
is there, and there are pogs, the reviews will be hidden to allow the
pogs to show.
If there are no reviews and no pogs, the empty reviews stars will show.
homepage reviews / prodPrev top / version

Homepage carousels now show reviews, then pog count if no reviews (same
as search bar).
Prod preview for search bar results moves to top of window so preview is
in view when it pops out.