Audio doesn't have the same quirks as video in the media modal. We don't have to aggressively destroy the `mejs` instance.

See #27016.



git-svn-id: https://develop.svn.wordpress.org/trunk@27414 602fd350-edb4-49c9-b593-d223f7449a82
Add some missing JSDoc blocks to media-related code.

See #27016.



git-svn-id: https://develop.svn.wordpress.org/trunk@27415 602fd350-edb4-49c9-b593-d223f7449a82