See who left an emoji reaction

[gnprice]

I.e., this Zulip feature:
https://zulip.com/help/emoji-reactions#viewing-who-reacted-to-a-message

This is less critical than it would have been years ago, because we already show the names of who reacted when there are up to 3 of them. But once there are more, we just show counts, and the user may want to see specifically who left the reactions.

Design

The design for this is in Figma: https://www.figma.com/design/1JTNtYo9memgW7vV6d0ygq/Zulip-Mobile?node-id=5878-1516&t=mBhvNBmPS0sBxGKG-0

Screenshot:

Design discussion: https://chat.zulip.org/#narrow/channel/530-mobile-design/topic/View.20Reactions.20ModalBottomSheet/near/2013460

The green dot (presence indicator) on the avatars is out of scope for this issue.

[chimnayajith]

Can I work on this?

[chrisbobbe]

Please take a look at the Zulip project's guide to getting involved with the code:

https://zulip.readthedocs.io/en/latest/contributing/contributing.html#your-first-codebase-contribution
https://zulip.readthedocs.io/en/latest/contributing/contributing.html#picking-an-issue-to-work-on

[chrisbobbe]

Updated the issue description to match the "Owner" metadata ("Needs design"):

We'll need a design for this UI. Until that's ready, this issue won't be ready to implement.

[chrisbobbe]

PR #1243 has a screenshot of one way this could look, as a bottom sheet. Copying from there:

[chrisbobbe]

Oh I see; actually, we do have a design for this: https://www.figma.com/design/1JTNtYo9memgW7vV6d0ygq/Zulip-Mobile?node-id=5878-1516&t=mBhvNBmPS0sBxGKG-0

I found this in the CZO discussion.

Updated the issue description and cleared out the "Owner" metadata.