fix expander

generator.py

@@ -110,8 +110,9 @@ class Generator:
                 })
                 fig = go.Figure([scatter_data], layout=layout)
                 plot.plotly_chart(fig, use_container_width=True)
-                with st.expander("What is it?"):
-                    st.write("You can see how the probability of the desired attribute varies for every generation step.")
+                if i == 0:
+                    with st.expander("What is it?"):
+                        st.write("You can see how the probability of the desired attribute varies for every generation step.")
             text.text(current_decoded)
 
         return (