Audio setup component deferred init,

because in a distributed swift system it takes a moment until the
settings are sychronized this is leading to
undesired "save settings" messages and played sounds

src/blackgui/components/audiosetupcomponent.h

@@ -43,6 +43,9 @@ namespace BlackGui
             bool playNotificationSounds() const;
 
         private:
+            //! Init
+            void init();
+
             //! Reload settings
             void reloadSettings();