fix: add smooth CSS transitions for vaul drawer animations

Commit notes

- Add CSS transitions for [data-vaul-drawer] elements with 0.5s duration using vaul's cubic-bezier easing curve (0.32, 0.72, 0, 1) - Add CSS transitions for [data-vaul-overlay] elements for smooth fade - Add will-change: transform hint for GPU-accelerated animations - Disable transitions during dragging with .vaul-dragging class - Honor prefers-reduced-motion for accessibility by disabling drawer animations when reduced motion is preferred

Co-authored-by: armin.naimi <[email redacted]>