style: Add 6px padding on the bottom too
This makes text showing on the bottom left corner not cut off in the default size.
Not sure if the slightly cut-off text with rounded corner is by design or the lack of padding on the bottom is a left-over from the more square:y days, but adding this MR in case it's the latter. Not sure which one is better.
Screenshots (left with added padding, right with no changes):
