Refresh the post-update login message.

Just a little older in the soul, like your faithful release lead.

fixes #29388.

Built from https://develop.svn.wordpress.org/trunk@29644


git-svn-id: http://core.svn.wordpress.org/trunk@29418 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media library: Ensure the header area is spaced consistently between view modes.

see #28946.

Built from https://develop.svn.wordpress.org/trunk@29645


git-svn-id: http://core.svn.wordpress.org/trunk@29419 1a063a9b-81f0-0310-95a4-ce76da25c4cd