Media Grid, support `MEDIA_TRASH`: 

* Only use the special `trashAttachment` logic when in `edit-metadata` mode.
* Don't support the `trash` filter in the Add Media modal for now.
* Properly toggle trash/untrash logic in the Attachment Details sidebar

See #29145.

Built from https://develop.svn.wordpress.org/trunk@29491


git-svn-id: http://core.svn.wordpress.org/trunk@29269 1a063a9b-81f0-0310-95a4-ce76da25c4cd