Initial commit: Crypto trader application

frontend/node_modules/@mui/utils/getReactElementRef/getReactElementRef.d.ts

@@ -0,0 +1,9 @@
+import * as React from 'react';
+/**
+ * Returns the ref of a React element handling differences between React 19 and older versions.
+ * It will throw runtime error if the element is not a valid React element.
+ *
+ * @param element React.ReactElement
+ * @returns React.Ref<any> | null
+ */
+export default function getReactElementRef(element: React.ReactElement): React.Ref<any> | null;