Fix collab indicator colors (#2854)

[[PR Description]]

Release Notes:

- N/A

or

- (Added|Fixed|Improved) ...
([#<public_issue_number_if_exists>](https://github.com/zed-industries/community/issues/<public_issue_number_if_exists>)).

If the release notes are only intended for a specific release channel
only, add `(<release_channel>-only)` to the end of the release note
line.
These will be removed by the person making the release.
e0cafffbc8Nate Butler committed on 8/17/2023, 2:59:55 AM· committed by GitHubparentsfa0ddfa8b13227
2 files changedLine totals unavailable