Porting Notes: KNotifications sound theme

[Jonathan Riddell]

KNotifications uses sound which you set in your .notifyrc file.

To prevent overlapping files the name of the files were renamed when
moving from kde-runtime to plasma-desktop.

You will nedd to update your .notifyrc file for this, e.g.
 Sound=KDE-Sys-Log-Out.ogg
is now
 Sound=Oxygen-Sys-Log-Out.ogg

I've added this to
https://community.kde.org/Frameworks/Porting_Notes#KNotifications_Changes

Jonathan