Draw PV on mouseover fails for Animate / Final Position when API is only source of move ordering

[rooklift]

Reason is hoverdraw() calls SortedMoveInfo() and naively uses the div_index var to pull the right one out, but the Infobox can use a different order.

Bug doesn't affect Single Move mode because it gets the PV by getting the ID of the hovered item and calling moves_from_click_n()