message: Use notification built in sound to take account the system sound settings (mac), closes
diff: notification.hasActionButton = YES;
  notification.actionButtonTitle = @"Continue";
  notification.otherButtonTitle = @"Close";
  + notification.soundName = @"Glass";
  // Delivery
  [self removeAllDeliveredNotificationsWithType:@"pomodoro"];
  [self scheduleNotification:notification];
  -
  - // Play sound
  - [[NSSound soundNamed:@"Glass"] play];
  }
  - (void)schedulePomodoroBreakWithTitle:(NSString *)title informativeText:(NSString *)informativeText
  notification.hasActionButton = YES;
  notification.actionButtonTitle = @"Continue";
  notification.otherButtonTitle = @"Close";
  + notification.soundName = @"Glass";
  // Delivery
  [self removeAllDeliveredNotificationsWithType:@"pomodoro_break"];
  [self scheduleNotification:notification];
  -
  - // Play sound
  - [[NSSound soundNamed:@"Glass"] play];
  }
  - (void)scheduleAutoTrackerWithProjectName:(NSString *)projectName projectID:(NSNumber *)projectID taskID:(NSNumber *)taskID
  