[Refereeing invitation] Facility for referees to specify an intended delivery date for their Report
Upon accepting to referee, a Contributor should be able to specify a date by which they intend to submit their Report. The default should be [now + target journal's reporting deadline].
The best moment for the referee to specify this is upon first agreeing to the refereeing invitation.
During the refereeing round, this target delivery date should be subsequently editable by the referee. Any editing should be communicated to the EiC, and an event should be added so that the authors are also informed (taking care of preserving any anonymity).