Fix cx.windows() to return borrowed windows (#8086)
Fixes #8068
Release Notes:
- Fixed an error message when joining a project twice
([#8068](https://github.com/zed-industries/zed/issues/8068)).
3d9503a454Conrad Irwin committed on 2/20/2024, 8:42:11 PM· committed by GitHubparent5c7cec9