ArticleViewer legend usernames are badly formatted when there are many of them

[ragesoss]

This is a regression; the footer previously handled long lists pretty well, including cases where the list needs to move to a second row.

Here's the live example: https://dashboard.wikiedu.org/courses/The_Ohio_State_University/Classical_Archaeology_(Spring_2024)/students/articles/SaxicolousArtume?showArticle=673815983

[Abishekcs]

I am working on this 😃 .