Marks this activity object as inactive without invalidating it.
- iOS 9.0+
- macOS 10.11+
- Mac Catalyst 13.0+Beta
- tvOS 10.0+
- watchOS 3.0+
Calling this method marks the user activity as no longer current, but does not invalidate it entirely. You can call this method when you want to stop advertising the activity for continuation and search indexing only temporarily. You may call
become later to restore this object as the current activity.