Fix sleep settings not resetting properly

Clicking the reset button in SettingsPopup calls loadSettings, but
loadSettings calls setAutoStartApplication via setProperty, and
setAutoStartApplication calls saveSettings. This prevents the sleep
settings from resetting properly. I moved the saveSettings call to the
QML to fix this.

applications/launcher/controller.cpp

@@ -216,7 +216,6 @@ QList<QObject*> Controller::getApps(){
 void Controller::setAutoStartApplication(QString autoStartApplication){
     m_autoStartApplication = autoStartApplication;
     emit autoStartApplicationChanged(autoStartApplication);
-    saveSettings();
 }
 AppItem* Controller::getApplication(QString name){
     for(auto app : applications){

applications/launcher/main.qml

@@ -316,7 +316,7 @@ ApplicationWindow {
                             }
                             var name = itemInfo.model.name
                             controller.autoStartApplication = controller.autoStartApplication !== name ? name : "";
-
+                            controller.saveSettings();
                         }
                     }
                 }