Add the "Automatic" option to assignee user picker in the new issue view

Currently, there is no "Automatic" option in assignee user picker even though there is in the old issue view.
It would be nice to user can choose "Automatic" option like the old issue view.

It's useful for the user who uses "components".
https://confluence.atlassian.com/jirasoftwarecloud/organizing-work-with-components-764478279.html