UITableView Stacked Problem

import UIKit

class UserViewController: UITableViewController {

    var API = DummyAPI(appId: "625534f6d7e95833f9570907")
    var id = ""

    var profileUsernameView = UILabel()
    var profilePictureView = UIImageView()
    var genderView = UILabel()
    var emailView = UILabel()
    var dateOfBirthView = UILabel()
    var phoneView = UILabel()
    var locationView = UILabel()
    var registeredDateView = UILabel()
    var updatedDateView = UILabel()


    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        loadUser()


    }


    override func viewDidLoad() {
        super.viewDidLoad()
        tableView.separatorStyle = .none
        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "UITableViewCell")
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "UITableViewCell", for: indexPath)
        cell.selectionStyle = .none
        cell.backgroundColor = .systemBackground

        cell.contentView.addSubview(profileUsernameView)
        cell.contentView.addSubview(profilePictureView)
        cell.contentView.addSubview(emailView)
        cell.contentView.addSubview(phoneView)
        cell.contentView.addSubview(locationView)
        cell.contentView.addSubview(registeredDateView)

        profileUsernameView.translatesAutoresizingMaskIntoConstraints = false
        profileUsernameView.font = UIFont.systemFont(ofSize: 18, weight: .semibold)
        profileUsernameView.numberOfLines = 0
        profileUsernameView.textAlignment = .left

        profilePictureView.translatesAutoresizingMaskIntoConstraints = false
        profilePictureView.clipsToBounds = true
        profilePictureView.layer.cornerRadius = 45

        emailView.translatesAutoresizingMaskIntoConstraints = false

        phoneView.translatesAutoresizingMaskIntoConstraints = false

        locationView.translatesAutoresizingMaskIntoConstraints = false
        locationView.numberOfLines = 0
        locationView.textAlignment = .left

        registeredDateView.translatesAutoresizingMaskIntoConstraints = false

        NSLayoutConstraint.activate([

            profilePictureView.widthAnchor.constraint(equalToConstant: 90),
            profilePictureView.heightAnchor.constraint(equalToConstant: 90),
            profilePictureView.topAnchor.constraint(equalTo: cell.contentView.topAnchor,constant: 5),
            profilePictureView.leadingAnchor.constraint(equalTo: cell.layoutMarginsGuide.leadingAnchor),

            profileUsernameView.topAnchor.constraint(equalTo: profilePictureView.bottomAnchor, constant: 10),
            profileUsernameView.leadingAnchor.constraint(equalTo: cell.contentView.layoutMarginsGuide.leadingAnchor),

            locationView.topAnchor.constraint(equalTo: profileUsernameView.bottomAnchor, constant: 2),
            locationView.leadingAnchor.constraint(equalTo: cell.contentView.layoutMarginsGuide.leadingAnchor),

            phoneView.topAnchor.constraint(equalTo: locationView.bottomAnchor, constant: 2),
            phoneView.leadingAnchor.constraint(equalTo: cell.contentView.layoutMarginsGuide.leadingAnchor),

            emailView.topAnchor.constraint(equalTo: phoneView.bottomAnchor, constant: 2),
            emailView.leadingAnchor.constraint(equalTo: cell.contentView.layoutMarginsGuide.leadingAnchor),

            registeredDateView.topAnchor.constraint(equalTo: emailView.bottomAnchor, constant: 2),
            registeredDateView.leadingAnchor.constraint(equalTo: cell.contentView.layoutMarginsGuide.leadingAnchor),

            cell.contentView.heightAnchor.constraint(greaterThanOrEqualToConstant: 350)

        ])

        self.tableView.beginUpdates()
        self.tableView.endUpdates()

        return cell
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }


}

extension UserViewController {

    func setUser(with data: UserModel) {

        self.title = data.firstName.lowercased() + data.lastName.lowercased()
        self.profilePictureView.load(url: URL(string: data.picture)!)
        self.profileUsernameView.text = data.firstName + " " + data.lastName
        self.genderView.text = data.gender
        self.emailView.text = data.email
        self.dateOfBirthView.text = data.dateOfBirth
        self.phoneView.text = data.phone
        self.locationView.text = "📍 " + data.location.city + ", " + data.location.country


        self.registeredDateView.text = "Joined since \((data.registerDate).prefix(10))"
        self.updatedDateView.text = "Last updated \(data.updatedDate)"

    }

    func loadUser() {
    API.getDetailUser(id: id) { [weak self] (result) in
        guard let _self = self else { return }
        switch result {
        case let .success(data):
            _self.setUser(with: data)
        case .failure:
            break

        }

    }

    }

}