ProfileViewController_Layout.swift

extension ProfileViewController: UICollectionViewDelegateFlowLayout {
    func collectionView(
        _ collectionView: UICollectionView,
        layout collectionViewLayout: UICollectionViewLayout,
        referenceSizeForHeaderInSection section: Int
    ) -> CGSize {
        .init(width: 1.0, height: 30.0)
    }
    
    func collectionView(
        _ collectionView: UICollectionView,
        layout collectionViewLayout: UICollectionViewLayout,
        sizeForItemAt indexPath: IndexPath
    ) -> CGSize {
        let width = collectionView.frame.width - collectionView.contentInset.left * 2.0
        
        return .init(width: width, height: 50.0)
    }
}