private async Task <string> SynchronizeTaskWithCalendar(ITaskItem taskItem)
        {
            if (taskItem == null)
            {
                return(string.Empty);
            }

            var appointment = CalendarManager.GetAppointment(taskItem.Title, taskItem.DueDate.Date);

            appointment.Details = taskItem.Notes;

            return(await CalendarManager.EditNewAppointmentAsync(appointment));
        }