Fix copy/paste error in user-new.php. props tivnet. fixes #24022.

git-svn-id: https://core.svn.wordpress.org/trunk@23950 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Reset transition property in toolbar CSS to avoid conflicts with themes. props kwight. fixes #24031.

git-svn-id: https://core.svn.wordpress.org/trunk@23951 1a063a9b-81f0-0310-95a4-ce76da25c4cd