Ingress email UI for issues
Description
Currently it is possible to:
- send an email to a special address to create new issues in a project
- reply to an email notification to comment on an issue
The problem is that there is no visible way for a user to send an email to an issue unless he received a notification pertaining to that issue, which, if we let go for a second the roundaboutness of such a way to obtain the link, he can't generate by himself since someone takes action on that issue (plus things just get worse when notifications aren't sent for some reason such as being unsubscribed of whatever). IOW maybe ingress issue emailing should not depend so much on egress emailing.
Proposal
Add a "link" somewhere within an issue, either in the sidebar (e.g near the reference link) or at the bottom of the discussion (nice, as it is very discoverable, and suggests that the discussion is "extendable" as well as being consistent with the way it's done on the issue list).
Links / references
Existing UI from the issue list: