Fix the discrepancy with the combo bar and final hold notes

[lomdr]

There's been a weird...discrepancy from Stepmania 5 (SMEv5) where if a song ends with a hold note, it will not continue the combo to the end of the hold note 'visually' in the combo bar in the results screen, even though the life gauge does continue to the end of the hold as it should. Since so many music games since 2008 ends combos if you drop their 'hold equivalents' and OF uses those games as 'inspiration', I think it's nigh time that the combo bar should always extend to the end of the bar for that reason. The cropped picture attached shows the discrepancy in action (in the Pink circle). Posting it here since it is more of a UI thing rather than a bug.