allow leaderboard score to fit on one line

[fdoyle]

changed layout name to row_profile for consistency with other list item layouts

set ems to 4 on score textview to guarantee that 4 digits can always safely fit in that space regardless of font (if someone hits a score of 10k, I suppose we'd have to update it again)

[patrickcousins]

Thanks this. Unfortunately all that extra space makes the design look a bit awkward. Could we try setting the padding/margins/whatever causing space on the left to 0?

[fdoyle]

Improved this a bit. Now 3 ems, but 4 numerical digits seems to fit in that easily.