Updates older themes to fix alignment, spacing, and font issues to better match the frontend display. Applies to themes: Twenty Eleven, Twenty Thirteen, Twenty Fourteen, Twenty Sixteen, Twenty Seventeen, and Twenty Twenty.
Props burnuser, talldanwp, cristinasoponar, poena, kjellr
Fixes#52009.
Built from https://develop.svn.wordpress.org/trunk@50358
git-svn-id: http://core.svn.wordpress.org/trunk@49969 1a063a9b-81f0-0310-95a4-ce76da25c4cd