Update app.py

app.py

@@ -533,7 +533,8 @@ class QuizApp:
             initial_answers,                          # answer_state
             gr.Tabs(selected=2),                      # tabs - navigate to assessment tab
             gr.update(visible=False),                 # results_group
-            gr.update(visible=False)                  # view_cert_btn        
+            gr.update(visible=False)                  # view_cert_btn
+        ]     
 def create_quiz_interface():
     if not os.getenv("GROQ_API_KEY"):
         raise EnvironmentError("Please set your GROQ_API_KEY environment variable")