Add verbose docs to `media-views.js`.

Props ericlewis.
See #30193.

Built from https://develop.svn.wordpress.org/trunk@30120


git-svn-id: http://core.svn.wordpress.org/trunk@30120 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Bump db_version and add upgrade routine for schema change in [30056].

Fixes #22023.
Built from https://develop.svn.wordpress.org/trunk@30121


git-svn-id: http://core.svn.wordpress.org/trunk@30121 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Correct references of `@uses $wpdb` in core documentation to use `@global`.

See #30191, [30105].
Fixes #30217.

Built from https://develop.svn.wordpress.org/trunk@30122


git-svn-id: http://core.svn.wordpress.org/trunk@30122 1a063a9b-81f0-0310-95a4-ce76da25c4cd