fix(ui/views/App/Settings/SettingsWindow): use `close` instead of `hide` on...

fix(ui/views/App/Settings/SettingsWindow): use `close` instead of `hide` on window when confirm button is pressed

linphone-desktop/ui/views/App/Settings/SettingsWindow.qml

@@ -119,7 +119,7 @@ ApplicationWindow {
 
       text: qsTr('validButton')
 
-      onClicked: window.hide()
+      onClicked: window.close()
     }
   }
 }