Update app.py

app.py

@@ -62,7 +62,7 @@ with generative:
 
 with chat:
     st.title("AI Chat")
-    messages = st.container(height="600")
+    messages = st.container(height=600)
     prompt_gpt = st.chat_input("Ask something")
     if prompt_gpt:
         user_msg = messages.chat_message("user").write(prompt_gpt)