nav buttons fixed the exit & save thing

views/intro_screen.py

@@ -29,20 +29,6 @@ def welcome_screen():
     if (username_input and validation_code_input) or next_button:
         if validate_username(username_input) and validate_code(validation_code_input):
             st.session_state.username = username_input
-
-            # # Check if user progress exists in Firebase
-            # saved_state = read(username_input)
-            #
-            # if saved_state:
-            #     # Show continue survey screen for returning users
-            #     st.success("Previous progress found.")
-            #     continue_survey_screen()
-            # else:
-            #     # Start fresh for new users
-            #     st.success("Starting a new survey.")
-            #     st.session_state.current_index = 0
-            #     st.session_state.responses = []
-            #     st.rerun()
         else:
             if not validate_username(username_input):
                 st.warning("Invalid Prolific ID. Please check and try again.")