[CurrentContainmentActionsModel] Emit configurationChanged when action is…

Authored by broulik on Sep 1 2017, 10:07 AM.

Description

[CurrentContainmentActionsModel] Emit configurationChanged when action is added/removed/edited

Removes the need for the UI to explicitly do this on every action.

Differential Revision: https://phabricator.kde.org/D7626