add one blank page if the total number of pages is odd in paged.js

gistfile1.txt

 <script>

            class pairPage extends Paged.Handler {
                constructor(chunker, polisher, caller) {
                    super(chunker, polisher, caller);
                }

                afterRendered(pages) {
                    if (pages.length % 2 === 1) {
                        const pageNew = document.createElement("div");
                        pageNew.classList.add("pagedjs_page");
                        
                        document.querySelector('.pagedjs_pages').insertAdjacentElement("beforeend", pageNew);
                        console.log( document.querySelector('.pagedjs_pages'));

                    }

                }
            }

            Paged.registerHandlers(pairPage);
        </script>