Issue: When sorting headshot percentage High->Low, NaNs show up as the 'highest'.
Expected: NaN should be always be at the bottom when sorting by HS%, no matter the direction

Issue: When sorting by headshot percentage, no matter the order, the column is sorted alphabetically rather than numerically. I.E. 1, 12, 2, 20
Expected: Numbers should be sorted numerically, rather than alphabetically. I.E. 1, 2, 12, 20