              navigation.classList.add('maximized');
            }
            e.stopPropagation();
        });
        document.addEventListener('click', function () {
            if (navigation.classList.contains('maximized')) {
                navigation.classList.remove('maximized');
            }
        });

        function showPreview() {
            const file_urls = document.getElementById("file-urls").value;
            const file_ids = document.getElementById("file-ids").value;
            const