This avoids overlapping with action buttons and brings some consistency to bottom paddings across various screens.
Props passoniate, afercia, anuj2, rolfsiebers, uxkai, ireneyoast, thijsvanloef, hellofromTonya, audrasjb, helen, SergeyBiryukov.
Fixes#49246.
git-svn-id: https://develop.svn.wordpress.org/trunk@49178 602fd350-edb4-49c9-b593-d223f7449a82