Redesign: Darkening current room name in the room list makes it difficult to tell at a glance which rooms have unread messages

[jrick]

In the current redesign (live on /experimental), the current room name is given a darkened foreground color in the room list. Other rooms not currently selected will use a lighter color if all messages are read, or the same darker color if there are unread messages. This is a usability concern for me as I can not tell at a glance from the room list which rooms have unread messages. The old riot design did not experience this issue, and the current room foreground color would switch from light to dark just as unselected rooms did.

[jrick]

Dup of #7891