feat: add new file

frontend/node_modules/dom-helpers/cjs/prepend.d.ts

@@ -0,0 +1,7 @@
+/**
+ * Insert a given element as the first child of a parent element.
+ *
+ * @param node the element to prepend
+ * @param parent the parent element
+ */
+export default function prepend(node: Element | null, parent: Element | null): Element | null;