fix rerun issue

app.py

@@ -32,6 +32,7 @@ def authenticate():
         if st.button("Login"):
             if st.session_state["login_password"] == app_password:
                 st.session_state["authenticated"] = True
+                st.rerun()
             else:
                 st.error("Invalid password. Please try again.")
                 st.stop()