One Dark Updates (#13777)

Before | After

![CleanShot 2024-07-03 at 10 25
24@2x](https://github.com/zed-industries/zed/assets/1714999/7b355217-7dcf-416a-8b6f-63a12d3f2ea7)

Release Notes:

- Improved contrast between some items in the One Dark theme.

Nate Butler committed 2y ago

414cff5c14a55ff8bf5364e6ff67f9e91e0a1dbb

Parent: 2925f3d

Committed by GitHub <noreply@github.com> on 7/8/2024, 10:01:51 PM