Media Grid: after completing a Bulk action, switch from `select` to `edit` mode.

Fixes #28842.

Built from https://develop.svn.wordpress.org/trunk@29566


git-svn-id: http://core.svn.wordpress.org/trunk@29340 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Grid: don't hide the uploader progress bar for individual items.

See [29527], #29037.

Built from https://develop.svn.wordpress.org/trunk@29567


git-svn-id: http://core.svn.wordpress.org/trunk@29341 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Grid: after [29566], account for Trash and Delete.

See #28842.

Built from https://develop.svn.wordpress.org/trunk@29568


git-svn-id: http://core.svn.wordpress.org/trunk@29342 1a063a9b-81f0-0310-95a4-ce76da25c4cd