Don't automatically active timer when adding plugin to panel

Submitted by sco..@..il.com

Assigned to Xfce-Goodies Maintainers

Link to original bug (#15514)

Description

Adding the plugin to the panel automatically activates the timer resulting in a pop up that the user can postpone after som minuts. Perhaps better to keep it disabled and let the user active it.

Version 1.0.2.