graphics/xaos: update to 4.1
From ChangeLog: https://github.com/xaos-project/XaoS/releases/tag/release-4.1
New Features
* Added option to show Cartesian coordinate grid.
* Custom palette helps visualizing palette before applying changes through
slider selectable values now.
* PNGs exported using 'Save Image' option can be imported back and users can
continue zooming on it.
Bug Fixes
* Fixed crash on recording XaoS animations.
* Fixed crash on rendering using command line.
* Fix handling non-ASCII paths on Windows.
* Only error messages are shown on incorrect commands.
* Some other small bug fixes.
Reported by: portscout
Approved by: ports-secteam (blanket, runtime fix)
3232dc5817