read avatars can go over the event body when expanded

[t3chguy]

on a narrow enough viewport and/or with enough read avatars on the event and it isn't immediately obvious how to get them to retract, maybe make an extra avatar-like icon which is a cross at the left of the list when its expanded to signify close/retract or for a large number of read avatars show them in a modal similar to how riot-android shows it

edit, at the extreme they can go past into the timestamp+main avatar part of the chat getting truncated at the left sidebar

[lampholder]

Is there an argument for their only expanding on mouse over?

[t3chguy]

Duplicate of #3384