assistant: Improve language model selector design (#25036)

Closes https://github.com/zed-industries/zed/issues/23234

This PR adds a scrollbar to the model selector, and ensures no label
(model and provider name) is cut off.

Release Notes:

- N/A
dc11a61ff8Danilo Leal committed on 2/17/2025, 8:12:46 PM· committed by GitHubparent5eadeb6
1 file changedLine totals unavailable