Port away from KIdleTime::simulateUserActivity()
The goal of the existing method simulateUserActivity was to make konversation react as though the user has interacted with the system resetting away states and restarting timers.
KIdleTime::simulateUserActivity()
tells every application that the
user has interacted with the system so they can reset the timers.
It's unnecesary for konversation to do this. This method will be deprecated in newer KIdleTime.