fix(exam): fix startexam function (not finding examdata)

app/exam/pretest/page.tsx

@@ -82,10 +82,9 @@ export default function PretestPage() {
 
   function handleStartExam() {
     setCurrentExam(examData);
-    startExam();
+    startExam(examData); // Pass examData directly
     router.push(`/exam/${id}?time=${metadata?.metadata.duration}`);
   }
-
   return (
     <BackgroundWrapper>
       <div className="min-h-screen flex flex-col justify-between">