/// There is a footer color issue in the case of a plain styled (not grouped style) tableView.
/// Before iOS 15, the footer was colored but now it was transparent

func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
  let footer = UIView()
  footer.isUserInteractionEnabled = false
  footer.backgroundColor = UIColor(red: 229/255, green: 229/255, blue: 229/255, alpha: 1)
  return footer
}