fix error logic about answer-area

Author: peanut996

app/page.tsx

@@ -172,13 +172,20 @@ export default function Page() {
   }
 
   const onNextQuestion = useCallback(async () => {
+    // Reset answer states when getting a new question
     setUserAnswer({ content: "" });
     setIsSubmitted(false);
     setTimeRemaining(600);
     setIsLoadingQuestion(true);
     // Reset timer state
     setIsTimerRunning(false);
 
+    // Close any open answer displays
+    setShowAnswerModal(false);
+    setShowInlineAnswer(false);
+    setAnswer(null);
+    setParsedAnswer(null);
+    
     try {
       const question = await generateRandomQuestion();
       setCurrentQuestion(question);
@@ -323,6 +330,12 @@ export default function Page() {
       })
     }
 
+    // Close any open answer displays before moving to the next question
+    setShowAnswerModal(false);
+    setShowInlineAnswer(false);
+    setAnswer(null);
+    setParsedAnswer(null);
+
     // Move to the next question
     onNextQuestion()
   }, [currentQuestion, onNextQuestion, toast, t])