Initial cleanup after [29220]:

* Alter/remove some jQuery global selectors, views should only manage themselves
* Trigger an event for attachments when arrow keys are pressed: `attachment:keydown:arrow`
* `media.view.Attachments` should listen for `attachment:keydown:arrow`
* Favor scoped selectors over globals

See #23560.

Built from https://develop.svn.wordpress.org/trunk@29555


git-svn-id: http://core.svn.wordpress.org/trunk@29330 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Cleanup after [29220]:

* `media.view.Attachment` should not reach outside itself with global jQuery selectors
* `media.view.Attachment.Details` will re-render when `media.view.Attachment`'s single status changes. Add a `ready` callback to apply initial input focus

See #23560.

Built from https://develop.svn.wordpress.org/trunk@29556


git-svn-id: http://core.svn.wordpress.org/trunk@29331 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't limit WP_Embed::cache_oembed() to posts and pages.

props bordoni, helen.
fixes #28639.
Built from https://develop.svn.wordpress.org/trunk@29557


git-svn-id: http://core.svn.wordpress.org/trunk@29332 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Cleanup after [29220]:

`media.controller.Library` is State/Backbone Model and should not touch views.

See #23560.

Built from https://develop.svn.wordpress.org/trunk@29558


git-svn-id: http://core.svn.wordpress.org/trunk@29333 1a063a9b-81f0-0310-95a4-ce76da25c4cd