tap+hold rooms dropdown menu icons need to be more clear

Nobody has claimed this yet.

In the Haskell room, we can see the standard dropdown menu.

I think the icons needs to be **way** more clear.

- person icon = no idea what this does even after trying it
- crossed out bell = mute all notifications? Even username mentions?
- heart = favorite (need to try this in order to figure out what it does though)
- down arrow = Move it down (need to try this in order to figure out what it does though)
- X button = **I thought this would close the menu**, but it actually leaves the room

Perhaps this menu can use standard english words in a vertical list rather than horizontal?

For example, user tap+hold on a room and it brings up a list of options laid out like
- personify / de-personify (still don't know what this does)
- mute notifications / enable notifications
- favorite / un-favorite
- make low priority / make normal priority


Start by reproducing the tap-and-hold room menu in the Haskell room and inspect the existing icon actions. Compare each action with the reported behavior, then make the options and the menu-dismissal behavior understandable; done means users can identify each action without trial and error.

Written by the indexing model from the issue text.