fix(carousel): replace translate-based centering to fix nav button click misses

[speixoto12]

Summary

Fixes #10084

The carousel CarouselPrevious and CarouselNext buttons use top-1/2 -translate-y-1/2 to center themselves vertically in horizontal mode. However, shadcn's base Button styles include active:not-aria-[haspopup]:translate-y-px, which applies a 1px downward shift on click for tactile feedback.

Both utilities target the same CSS translate property. On click, the transform jumps from -50% to 1px, displacing the button by roughly half the carousel's height instead of 1px. This moves the button out from under the pointer before mouseup fires, causing clicks to silently fail — especially noticeable when clicking near the top edge of the button.

Fix

Replace top-1/2 -translate-y-1/2 with inset-y-0 my-auto on the nav buttons. Centering via auto margins instead of a transform frees up the translate property entirely, allowing the active press effect to work as originally intended — a subtle 1px shift with no conflict.

Why this approach

• Minimal and targeted — one centering change, no new CSS properties or pseudo-elements
• Preserves the existing press animation — active:translate-y-px now works correctly
  rather than being replaced or worked around
• No side effects — margin-auto centering is fully equivalent for absolutely positioned
  elements with inset-y-0

Related PRs

• fix(carousel): increase hit area of nav buttons to prevent click miss… #10097 — expands the hit area with a pseudo-element to absorb the displacement (does not fix the root transform conflict)
• fix(carousel): use margin-auto centering and scale for nav button press effect #10271 — also uses margin-auto centering, but additionally replaces the translate press effect with a scale-based one; this PR takes a more minimal approach and keeps the original Button feedback intact

Changes

• apps/v4/registry/bases/base/ui/carousel.tsx
• apps/v4/registry/bases/radix/ui/carousel.tsx
• Rebuilt registry via pnpm registry:build

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