requestIdleCallback is unavailable in Safari < 16.4, causing GatedProviders
to crash during hydration and blank the entire page. Added setTimeout fallback.
Also added IntersectionObserver fallback in ScrollFadeIn for safety.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
ScrollFadeIn uses IntersectionObserver + CSS transitions instead of
Framer Motion's initial prop. Key difference: no inline style in SSR
HTML, so content is visible by default. Animation only activates
after client hydration (hasMounted check).
Wraps About, Projects, Contact, Footer in HomePageServer.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
