Closes https://github.com/zed-industries/zed/issues/38643
This PR adds some UI improvements to the Zed replacement of the system
dialog/prompt, including better visibility of which button is currently
focused.
One little design note, though: because of a current (and somewhat
annoying) constraint of button component, where we're only drawing a
border when its style is outlined, if I kept them horizontally stacked,
there'd be a little layout shift now that I'm toggling styles for better
focus visibility. So, for this reason, I changed them to be vertically
stacked, which matches the macOS design and avoids this problem. Maybe
in the future, we'll revert it back to being `flex_row` because that
ultimately consumes less space.
https://github.com/user-attachments/assets/500c840b-6b56-4c0c-b56a-535939398a7b
Release Notes:
- Improve focus visibility of the actions within Zed's UI system prompt.
ed7217ff46