gpui: Rename `rounded_sm` to `rounded_xs` (#26221)

This PR renames the `rounded_sm` style method to `rounded_xs`.

This will allow us to add an additional step in the scale.

Release Notes:

- N/A

Marshall Bowers committed 1y ago

99216acdec7d586e91ceb8b1b00ceee9f13be549

Parent: aef25a3

Committed by GitHub <noreply@github.com> on 3/6/2025, 4:08:19 PM