Restore calling UIApplicationDelegate methods on UIApplication state change when using UIWindowSceneDelegate.

SceneDelegate.swift

@available(iOS 13.0, *)
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    
    func sceneWillResignActive(_ scene: UIScene) {
        
        if !UIApplication.shared.connectedScenes.contains(where: { $0.activationState == .foregroundActive && $0 != scene }) {
            UIApplication.shared.delegate?.applicationWillResignActive?(.shared)
        }
    }
    
    
    func sceneDidEnterBackground(_ scene: UIScene) {
        
        if !UIApplication.shared.connectedScenes.contains(where: { $0.activationState == .foregroundActive || $0.activationState == .foregroundInactive }) {
            UIApplication.shared.delegate?.applicationDidEnterBackground?(.shared)
        }
    }
    
    
    func sceneWillEnterForeground(_ scene: UIScene) {
        
        if !UIApplication.shared.connectedScenes.contains(where: { $0.activationState == .foregroundActive || $0.activationState == .foregroundInactive }) {
            UIApplication.shared.delegate?.applicationWillEnterForeground?(.shared)
        }
    }
    
    
    func sceneDidBecomeActive(_ scene: UIScene) {
        
        if !UIApplication.shared.connectedScenes.contains(where: { $0.activationState == .foregroundActive && $0 != scene }) {
            UIApplication.shared.delegate?.applicationDidBecomeActive?(.shared)
        }
    }
}