2025-scroll-state

• https://codegrid.github.io/2025-scroll-state/scroll-state-scrollable.html
• https://codegrid.github.io/2025-scroll-state/scroll-state-scrollable-2.html
• https://codegrid.github.io/2025-scroll-state/scroll-state-stuck.html
• https://codegrid.github.io/2025-scroll-state/scroll-state-snapped.html