Users's feedbacks. Raised hands in participants' tiles were not
highlighted enough.
It was discussed adding a colorful border around the participant's
tile (idea inspired by Jitsi). Nonetheless, it conflicts with the
current blue border, indicating when a participant is speaking.
Until this blue border is present, it's not a great idea having a
second border indicating a new level of informations.
@sampacoud requested a yellow-ish/colorful indicator of when a
participant raised her hand, inspired by Jitsi. However, I think
yellow color should be reserved for warning or dangerous action.
I chose to use a white background around the participant's name,
to reinforce the visual indication a participant has her hand
raised, while still being discreet. It's inspired by Gmeet.
4e175a8361