Plan step 36. fab-menu.css claimed the item sets no translate or opacity
of its own once it has entered; fab-menu-item.css sets both at rest, and
the closing rule wins on specificity, which the header now says.
fab-menu-item.css named the rule by the root's hook instead of the
popover's, and a render test named for the list's scroll asserted the
exit; it is named for what it checks.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
