Three dots > mark as finished opens a dialog over the list: when did it
finish, today unless you enter a date. Today is not offered for a planting
made today, as the server needs a finish after the planting. It saves as
JSON and the planting leaves the list, without leaving the page. The card
data carries the server's date for today.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>