[Bug] Incorrect width when present a full screen ViewController in the Sheet

[VitoNYang]

Presenting a ViewController with modalPresentationStyle = .fullScreen in a sheet view, when dismiss the ViewController will cause the width of the sheet view to be incorrect.

[VitoNYang]

Seems like the view.layoutIfNeeded() cause the width to incorrect

[VitoNYang]

According to the clue from PR #199,

this issue is trigger by SheetViewController's viewDidDisappear method,

So, I think we can fix this by checking if whether presenttedviewcontroller is nil

    public override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        // Add a guard statement to prevent unexpected dismiss
        guard presentedViewController == nil else { return }
        if let presenter = self.transition.presenter, self.options.shrinkPresentingViewController {
            self.transition.restorePresentor(presenter, completion: { _ in
                self.didDismiss?(self)
            })
        } else if !self.options.useInlineMode {
            self.didDismiss?(self)
        }
    }