We were calling reset without the proper params which was causing errors in the console. This commit does the following changes:
- ensures `composer.cancel()` is the only way to cancel editing/reply
- adds a `draftSaved` property to chat message to allow for better tests
- writes a spec to ensure the flow is correct
- adds more page objects for better tests
- homogenize the default state of objects on chat message
Co-authored-by: Martin Brennan <martin@discourse.org>
This commit attempts to correctly change draft when the channel changes. It moves responsibility to the composer instead of the channel.
A new service `chatDraftsManager` is being introduced here to allow finer control and pave the way for future thread draft support.
These changes also now allow an editing message to be stored as a draft.
