Privacy: Support additional elements (table, ol, ul) in privacy policy guide new styling

The privacy policy guide supports a lot of HTML, include rules for lists, and ensure proper styling for the rest.

Props garrett-eclipse. 
Fixes #49772.

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git-svn-id: https://core.svn.wordpress.org/trunk@47335 1a063a9b-81f0-0310-95a4-ce76da25c4cd