[web] Add ColorSelector to EmojiAvatarSelectionModal
Summary:
Add ColorSelector to EmojiAvatarSelectionModal and hook up to pendingAvatarColor.
Depends on D8266
Test Plan:
Works as expected:
Reviewers: ashoat, ginsu, michal, kamil, inka, rohan
Reviewed By: rohan
Subscribers: tomek
Differential Revision: https://phab.comm.dev/D8267