fixed all issues

Author: Aadeshcode

packages/app/src/app/race/_components/race/code.tsx

@@ -4,7 +4,7 @@ import React from "react";
 type CodeProps = {
  code: string;
  input: string;
- preRef: React.MutableRefObject<HTMLPreElement | null>;
+ preRef?: React.MutableRefObject<HTMLPreElement | null>;
 };
 
 export default function Code({ code, input, preRef }: CodeProps) {