Add supporting themes required for Lotusdocs

themes/hugo-mod-jslibs-dist/popperjs/package/dist/esm/dom-utils/isTableElement.js

@@ -0,0 +1,4 @@
+import getNodeName from "./getNodeName.js";
+export default function isTableElement(element) {
+  return ['table', 'td', 'th'].indexOf(getNodeName(element)) >= 0;
+}