launch method
Implementation
launch(ApplicationModel app, BuildContext context) async
{
// get the home page
var page = app.homePage;
// set the system app
app.started = false;
System().launchApplication(app, true);
// refresh the app
app.refresh();
// launch the page
NavigationManager().setNewRoutePath(PageConfiguration(url: page, title: "Store"), source: "store");
}