A closed dropdown's content stayed displayed whenever it carried a display class (flex, grid), only invisible, so it
still took room: the React picker past a card's right edge made the whole feed scroll sideways on a phone (294px at
360px). A closed one is now not displayed at all. DDropdown moves the focus into its content on opening, which also
scrolls a menu cut off by the feed into view, and gives it back to its trigger after Escape or an outside tap. New
SheetOnNarrow makes the content a sheet from the bottom of the screen below md, over a dimmed page, at most 80dvh tall.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw