update feedback list in session_state

app.py

@@ -244,8 +244,8 @@ def feedback():
 
 main = st.container()
 with main:
-    if st.session_state["feedback"][-1] is not None:
-        st.markdown("Feedback received! Thank you for your insight.")
+    if st.session_state["feedback"][-1] is not None: # TODO clean this up in a fn?
+            st.markdown("Feedback received! Thank you for your insight.")
     history = st.container(height=400)
     with history:
         for message in st.session_state["messages"]:
@@ -268,9 +268,11 @@ with main:
     st.markdown("\n") #add some space for iphone users
     # with st.container():
     gave_feedback = st.button('Give Feedback on Last Response', on_click=feedback)
-    if gave_feedback:
-        st.session_state["feedback"].append("given")
-        st.markdown("Feedback received! Thank you for your insight.")
+    if gave_feedback: # TODO clean up the conditions here with a function
+        st.session_state["feedback"].append("given") 
+    else: 
+        st.session_state["feedback"].append(None)
+        # st.markdown("Feedback received! Thank you for your insight.")
     # time.sleep(3)
     # add st.session_state["feedback"] var for keeping track of when the user gives feedback!