iOS 18 enhancement request - dark icon

I did not find this in GitHub Issues or on the forum, but having updated to iOS 18 the lack of a dark icon option for Joplin is notable. There is information on this new aesthetic feature in the Apple documentation.

Indeed it would make sense to have this and shouldn't be too hard to add. I've created the issue here: Create the iOS 18 Dark icon · Issue #11119 · laurent22/joplin · GitHub