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Changes between Initial Version and Version 1 of Ticket #24716, comment 40

initial	v1
8	8	* Introduce `media.controller._State`, which is a more abstracted state controller object. `media.controller.State` is hard-wired to the regions defined by `media.view.MediaFrame`, while the only region we need in `media.view.Frame.EditMediaDetails` is `content`.
9	9	* `media.controller.EditImageNoFrame` is the state for editing an image (i.e. the cropping interface), a simplified version of `media.controller.EditImage` without the `toolbar` region setup, which we will not need.
10		* Something I'm happy with: in `media.view.Attachment`, trigger an event on the frame controller `edit:attachment`, instead of creating the modal from within the view, the controller does on an event callback. We should continue to decouple components via the event API as much as possible.
	10	* Something I'm happy with: in `media.view.Attachment`, trigger an `edit:attachment` event on the frame controller. Instead of creating the modal from within the `Attachment` view, the controller does so on an `edit:attachment` event callback. We should continue to decouple components via the events bus as much as possible.