- Added max-height, overflow-y: auto, overscroll-behavior: contain,
and scrollbar-width: thin to .toc in the desktop media query (toc.css)
- This gives the TOC its own scrollbar when its content exceeds the
viewport height, scrolling independently from the main content
- Affects both public pages (about, charte, licence via .page-content)
and admin pages (acces, parametres, contenus via .admin-main--toc)