A block held and dragged moves its task to another of the three days
shown and another time, its top snapping to a quarter hour, the time it
would take shown under the pointer, its duration, recurrence and
reminders kept; dropped on a day's All day it loses its time and
duration. Either can be undone for a moment. A later time of a repeating
task doesn't move. DayDropArea's move is now moveTask, shared by both.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>