This changeset switches back the admin menu items `height` property to `px` unit to prevent issues with themes using `html { font-size: 62.5%; }`.
Follow-up to [57765].
Props bgnicolepaschen, sabernhardt, huzaifaalmesbah, ironprogrammer, shailu25.
Fixes#60707.
See #43633.
Built from https://develop.svn.wordpress.org/trunk@57792
git-svn-id: http://core.svn.wordpress.org/trunk@57293 1a063a9b-81f0-0310-95a4-ce76da25c4cd
