Agus Zubiaga
d46ad937fe
Replaces the verbose struct-literal construction of `gpui::BoxShadow` with a builder API: - `BoxShadow::new(offset_x, offset_y, color)` takes the required fields, with arguments ordered to match the CSS `box-shadow` property. - `.blur_radius(_)`, `.spread_radius(_)`, and `.inset()` set the optional fields. All in-tree call sites are migrated, including the Tailwind-style `shadow_xs`..`shadow_2xl` helpers in `gpui_macros`, the `ElevationIndex` shadows in `ui`, and various widgets across `editor`, `workspace`, `agent_ui`, and `ai_onboarding`. The fields on `BoxShadow` remain public, so external code using struct-literal construction continues to work. Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content is consistent with the [UI/UX checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) - [ ] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable Release Notes: - N/A