update logic to wait on rating

app.py

@@ -216,7 +216,9 @@ def feedback():
     with st.container():
         st.title("Feedback Interface")
         sentiment_mapping = [":material/thumb_down:", ":material/thumb_up:"]
-        rating = st.feedback()
+        rating = None
+        while not rating:
+            rating = st.feedback()
         feedback = st.text_input(f"Please detail your rationale for choosing {sentiment_mapping[rating]}: ", "")
         # feedback = ""
         # review = {}