agent_ui: Fix model name label truncation (#42921)
Closes https://github.com/zed-industries/zed/issues/32739
Release Notes:
- agent: Fixed an issue where the label for model names wouldn't use all
the available space in the model picker.
5f356d04ffDanilo Leal committed on 11/17/2025, 10:12:26 PM· committed by GitHubparent73d3f96