通过Mac Catalyst运行应用程序时，从Mac摄像头显示完整的摄像头宽度

import AVFoundation
import Catalyst

class CameraViewController: UIViewController {
    var captureSession: AVCaptureSession!
    var videoPreviewLayer: AVCaptureVideoPreviewLayer!

    override func viewDidLoad() {
        super.viewDidLoad()
        
        captureSession = AVCaptureSession()
        captureSession.sessionPreset = .high
        
        guard let captureDevice = AVCaptureDevice.default(for: .video) else { return }
        guard let input = try? AVCaptureDeviceInput(device: captureDevice) else { return }
        captureSession.addInput(input)
        
        videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
        videoPreviewLayer.frame = view.layer.bounds
        videoPreviewLayer.videoGravity = .resizeAspectFill
        view.layer.addSublayer(videoPreviewLayer)
        
        captureSession.startRunning()
    }
}