Improves the existing document rejection process by actually marking a
document as completed cancelling further actions.
## Related Issue
N/A
## Changes Made
- Added a new rejection status for documents
- Updated a million areas that check for document completion
- Updated email sending, so rejection is confirmed for the rejecting
recipient while other recipients are notified that the document is now
cancelled.
## Testing Performed
- Ran the testing suite to ensure there are no regressions.
- Performed manual testing of current core flows.
## Description
Adds support for rejecting a given document informing the document
owner.
Flows for resolving a rejection don't currently exist so it's up to the
document owner to reach out to the recipient and work out a way to move
forward via a new document or offline agreement.
## Related Issue
## Changes Made
- Added new rejection properties to the recipient schema
- Added API endpoints to support rejection
- Added email templates for notifying the document owner and recipient
- Added a dialog on the signing page to start the rejection flow.
## Testing Performed
- Manually tested the flow end to end
- Automated tests are planned
