Quiz: switch h2 to div for question text (Streamlit was hiding h2)

app.py

@@ -2173,7 +2173,7 @@ def _render_quiz_card_open(step, total, question, helper):
         f'<div class="quiz-card">'
         f'<div class="quiz-progress-text">Step {step} of {total}</div>'
         f'<div class="quiz-progress-bar"><div class="quiz-progress-fill" style="width:{pct}%"></div></div>'
-        f'<h2 class="quiz-question">{question}</h2>'
+        f'<div class="quiz-question">{question}</div>'
         f'<p class="quiz-helper">{helper}</p>'
         f'</div>',
         unsafe_allow_html=True,