Merge pull request #5746 from RosettaCommons/roccomoretti/interactive_center_score
[Foldit] Center Score in Score Panel.
The score is not centered within the score panel, which leads to slightly off scores, particularly when they get long (see the starting score for the current AlphaFold design puzzle). Part of the reason for this is the attempt at support for the fractional score progress gauge.
We don't ever use this anymore (we have "advanced" mode permanently turned on, except for some tutorial puzzles, which have their own score display.) Rip out the fractional score support, and just put the full score directly in the score panel, which allows us to center it better.