I can't find a reason for not doing this, probably this was forgotten in https://github.com/ppy/osu/pull/15440
Increment isn't correct since it returns the post-incremented value. It also always increments.
Improve tablet error/warning notifications messaging
Notification.Closed
Close
FillFlow.Spacing
Also adds test coverage of read state and light.
NotificationOverlay
AlwaysPresent
ProgressUpdate
ProgressNotification
NotificationContent
MainContent
and tidy things up a bit.
To help with test failures and the likes.