Fix shape clipping issue if possible on mobile

[pganssle]

Most of the shapes look fine at all sizes, but on mobile I'm finding that the circle at least is getting clipped a bit (see "F" in the yellow chord):

Considering the notes are arranged diagonally, it might be possible to let the divs overflow their proper sizes, but considering I can't even get the stats display working I don't have high hopes of making this work perfectly myself.