Helper function to present a popover.

presentingPopover

    ///
    /// - Parameters:
    ///   - popoverContent: the view controller to add as a popover.
    ///   - sourcePoint: the point in which to anchor the popover.
    ///   - size: the size of the popover. Default uses the popover preferredContentSize.
    ///   - delegate: the popover's presentationController delegate. Default is nil.
    ///   - animated: Pass true to animate the presentation; otherwise, pass false.
    ///   - completion: The block to execute after the presentation finishes. Default is nil.
    public func presentPopover(_ popoverContent: UIViewController, sourcePoint: CGPoint, size: CGSize? = nil, delegate: UIPopoverPresentationControllerDelegate? = nil, animated: Bool = true, completion: (() -> Void)? = nil) {
        popoverContent.modalPresentationStyle = .popover

        if let size = size {
            popoverContent.preferredContentSize = size
        }

        if let popoverPresentationVC = popoverContent.popoverPresentationController {
            popoverPresentationVC.sourceView = view
            popoverPresentationVC.sourceRect = CGRect(origin: sourcePoint, size: .zero)
            popoverPresentationVC.delegate = delegate
        }

        present(popoverContent, animated: animated, completion: completion)
    }