Add supporting themes required for Lotusdocs

themes/hugo-mod-jslibs-dist/popperjs/package/lib/dom-utils/getCompositeRect.js.flow

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+// @flow
+import type { Rect, VirtualElement, Window } from '../types';
+import getBoundingClientRect from './getBoundingClientRect';
+import getNodeScroll from './getNodeScroll';
+import getNodeName from './getNodeName';
+import { isHTMLElement } from './instanceOf';
+import getWindowScrollBarX from './getWindowScrollBarX';
+import getDocumentElement from './getDocumentElement';
+import isScrollParent from './isScrollParent';
+import { round } from '../utils/math';
+
+function isElementScaled(element: HTMLElement) {
+  const rect = element.getBoundingClientRect();
+  const scaleX = round(rect.width) / element.offsetWidth || 1;
+  const scaleY = round(rect.height) / element.offsetHeight || 1;
+
+  return scaleX !== 1 || scaleY !== 1;
+}
+
+// Returns the composite rect of an element relative to its offsetParent.
+// Composite means it takes into account transforms as well as layout.
+export default function getCompositeRect(
+  elementOrVirtualElement: Element | VirtualElement,
+  offsetParent: Element | Window,
+  isFixed: boolean = false
+): Rect {
+  const isOffsetParentAnElement = isHTMLElement(offsetParent);
+  const offsetParentIsScaled =
+    isHTMLElement(offsetParent) && isElementScaled(offsetParent);
+  const documentElement = getDocumentElement(offsetParent);
+  const rect = getBoundingClientRect(
+    elementOrVirtualElement,
+    offsetParentIsScaled
+  );
+
+  let scroll = { scrollLeft: 0, scrollTop: 0 };
+  let offsets = { x: 0, y: 0 };
+
+  if (isOffsetParentAnElement || (!isOffsetParentAnElement && !isFixed)) {
+    if (
+      getNodeName(offsetParent) !== 'body' ||
+      // https://github.com/popperjs/popper-core/issues/1078
+      isScrollParent(documentElement)
+    ) {
+      scroll = getNodeScroll(offsetParent);
+    }
+
+    if (isHTMLElement(offsetParent)) {
+      offsets = getBoundingClientRect(offsetParent, true);
+      offsets.x += offsetParent.clientLeft;
+      offsets.y += offsetParent.clientTop;
+    } else if (documentElement) {
+      offsets.x = getWindowScrollBarX(documentElement);
+    }
+  }
+
+  return {
+    x: rect.left + scroll.scrollLeft - offsets.x,
+    y: rect.top + scroll.scrollTop - offsets.y,
+    width: rect.width,
+    height: rect.height,
+  };
+}