PassiveNotificationsManager: make maximumNotificationWidth read-only
requested to merge sporknife/kirigami:work/sporknife/PassiveNotificationsManager_improvement into master
maximumNotificationWidth property is a calculated property which is not and should not be overriden.
Signed-off-by: Matej Starc matej.starc@protonmail.com
Edited by Matej Starc