Backtick-escape three sets of HTML entities used in DocBlock descriptions in wp-includes/kses.php.

Without the escaping, the Code Reference/browser may inadvertently attempt to convert and display entities.

Fixes #30473.

Built from https://develop.svn.wordpress.org/trunk@30720


git-svn-id: http://core.svn.wordpress.org/trunk@30710 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove some now-unnecessary double quotes around HTML entities used in DocBlock comments.

See #30473.

Built from https://develop.svn.wordpress.org/trunk@30721


git-svn-id: http://core.svn.wordpress.org/trunk@30711 1a063a9b-81f0-0310-95a4-ce76da25c4cd