try another avatar fix

app.py

@@ -216,12 +216,12 @@ with main:
     history = st.container(height=400)
     with history:
         for message in st.session_state["messages"]:
-            # avatar = "🧑‍💻"
+            avatar = "🧑‍💻"
             if message["role"] == "assistant":
                 avatar = MODEL_AVATAR_URL
-            else:
-                avatar = "🧑‍💻"
-            with st.chat_message(message["role"],avatar=avatar):
+            # else:
+            #     avatar = "🧑‍💻"
+            with st.chat_message(message["role"], avatar=MODEL_AVATAR_URL if message["role"] == "assistant" else "🧑‍💻"):
                 if message["content"] is not None:
                     st.markdown(message["content"])
                 if message["error"] is not None: