Keep #screen-meta font size consistent. props SergeyBiryukov. fixes #26300.

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git-svn-id: http://core.svn.wordpress.org/trunk@26350 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Get more specific with responsive list table column hiding. Removes unused styling for the plugins list table. fixes #26298.

Built from https://develop.svn.wordpress.org/trunk@26453


git-svn-id: http://core.svn.wordpress.org/trunk@26351 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Also get more targeted for taxonomy columns. Consolidate column hiding into one rule. props SergeyBiryukov. fixes #26298.

Built from https://develop.svn.wordpress.org/trunk@26454


git-svn-id: http://core.svn.wordpress.org/trunk@26352 1a063a9b-81f0-0310-95a4-ce76da25c4cd