Settings → Views → *Drag to reschedule*, on by default.
Turned off, CalendarHost provides no EventMoveScope, which is the existing "moving is off" contract: no event block in month, week or day view registers a drag gesture, and the screen-reader Move… action goes away with it. Nothing changes for anyone who leaves it on.
Closes#173
Co-authored-by: Jean-Luc Makiola <business@jeanlucmakiola.de>
Reviewed-on: https://codeberg.org/jlmakiola/calendula/pulls/174