chore: import upstream snapshot with attribution

apps/webapp/app/hooks/useLazyRef.ts

@@ -0,0 +1,12 @@
+import type { MutableRefObject } from "react";
+import { useRef } from "react";
+
+const useLazyRef = <T>(initialValFunc: () => T) => {
+  const ref: MutableRefObject<T | null> = useRef(null);
+  if (ref.current === null) {
+    ref.current = initialValFunc();
+  }
+  return ref;
+};
+
+export default useLazyRef;