Emit a `BreadcrumbsChanged` event when associated settings changed (#36177)
Closes https://github.com/zed-industries/zed/issues/36149
Release Notes:
- Fixed a bug where changing the `toolbar.breadcrumbs` setting didn't
immediately update the UI when saving the `settings.json` file.
f514c7cc18Joseph T. Lyons committed on 8/14/2025, 3:22:38 PM· committed by GitHubparentba2c45b