Added messaging from overview to details. When the userdetails is open and the state of the toggle for receiving reports is changed, this change is now progagated to the details view via props. The canonical way would have been to use Vue.set on the instance of currentUser. But this did not work as expected. So this way via props seems to do the trick.

teichmann@intevation.de = sascha.teichmann@intevation.de
bernhard.reiter@intevation.de = bernhard@intevation.de