Add iampoul/react-parallax to React Graphics and Animations

[iampoul]

Adds react-parallax to the React Graphics and Animations section.

What it is: A React parallax component with scroll and pointer-based motion.

Why it belongs here:

• Zero React re-renders during animation (rAF loop + DOM ref mutations, no setState)
• Supports scroll mode, pointer/mouse mode, or both
• Spring physics and lerp smoothing options
• Per-layer depth-of-field blur, rotation, scale, and fade
• Built-in prefers-reduced-motion support
• Pauses automatically when off-screen (IntersectionObserver) or tab is hidden
• ESM + CJS, TypeScript, "use client" for Next.js RSC
• MIT licensed, actively maintained