Always use whole user name as link (#27815) (#27838)
Backport #27815 by @denyskon
Starting from #25790 this shared template only linked the username of
the user if both display name and username were shown. I experienced
myself always trying to click on the display name - I think it is
annoying for others too.
After:
Co-authored-by: Denys Konovalov <kontakt@denyskon.de>
ac22116211