D24667: [KStatusNotifierItem] Allow left click when menu is null

[Konrad Materka]

kmaterka added a reviewer: Frameworks.

REPOSITORY
  R289 KNotifications

REVISION DETAIL
  https://phabricator.kde.org/D24667

To: kmaterka, davidedmundson, broulik, nicolasfella, #frameworks
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns