deskutils/nextcloudclient: Update to 3.11.0

Guido made some additional improvements:

- Taking advantage of new cmake option to disable webengine
- Added options to control integration with KDE and GNOME file managers
- Adjusted dependencies, so they more correctly reflect selected options
- Fixed the DOCS option
- Reordered some variable to adapt to the suggested order (via portclippy)

PR:		275671
Reported by:	 Guido Falsi