private async void StartAsync()
{
var mainGroup = new ToolbarGroup(0);
_workspaces.OrderBy(w => w.Sequence).ForEach(
w => mainGroup.Add(new ToolbarAction(this, w.DisplayName, async() => await NavigateToWorkspace(w))));
var logoutGroup = new ToolbarGroup(100)
{
new ToolbarAction(this, "Logout", Logout)
};
Toolbar.Clear();
Toolbar.AddGroup(mainGroup);
Toolbar.AddGroup(logoutGroup);
var home = GetHomeScreen();
if (home != null)
{
await NavigateToWorkspace(home);
}
}