Customize: Ensure `id` for section and panel is passed among `params` to respective templates.

Fixes issue where JS-added Publish Settings section failed to get container element ID set properly to hide its section-meta.

Amends [42025].
See #42337, #42083.

Built from https://develop.svn.wordpress.org/trunk@42035


git-svn-id: https://core.svn.wordpress.org/trunk@41869 1a063a9b-81f0-0310-95a4-ce76da25c4cd