Fixes T12503.
- Users with creative usernames like MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM could overflow "Subscribers" in the curtain UI.
- Other content like packages could also overflow.
- Users with interesting and unique names like WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW who were also away or disabled could get a linebreak between their availability dot and their username.
