add_action('admin_footer', function () {
    if (isset($_GET['page'], $_GET['sp']) && $_GET['page'] == 'quform.entries' && $_GET['sp'] == 'view') {
        ?>
        <script>
            jQuery(function ($) {
                $('.qfb-entry-table ul').each(function () {
                    var images = [];
                    $(this).find('>li>a').each(function () {
                        var href = $(this).attr('href');
                        if (/(.gif|.png|.jpe?g)$/ig.test(href)) {
                            var $image = $('<img>').attr('src', href).css({
                                maxWidth: '100%'
                            });
                            images.push($('<div>').css('margin-bottom', '10px').append($image));
                        }
                    });
                    if (images.length) {
                        $(this).replaceWith(images);
                    }
                });
            });
        </script>
        <?php
    }
});