adjusted main event flow

app.py

@@ -4,7 +4,6 @@ import os
 from openai import AsyncOpenAI
 from pinecone import Pinecone
 from dotenv import load_dotenv
-import asyncio
 
 load_dotenv(override=True)
 
@@ -142,12 +141,6 @@ async def handle_chat_start():
     cl.user_session.set("message_history", [])
     cl.user_session.set("food_data", None)
 
-    msg = cl.Message(content="Loading...")
-    await msg.send()
-    await msg.remove()
-
-    await asyncio.sleep(0)
-
     welcome_message = """
 ## Welcome to the USDA Food Assistant!