systemtray: Fix crash with scroll-to-next.
And crashes involving other action invocations. We need to guard against KSNI::action everywhere action() is called, not just in the ctor. A good Junior Job might be going through and renaming the JuK-specific ActionCollection and action() functions to something a little less likely to conflict with KDE or Qt namespace.
Showing with 6 additions and 6 deletions