fix import for products (#164)

* Update deployment name variables for OpenAI chat service

* update devcontainer

* fix product path for local api run

src/api/contoso_chat/chat_request.py

@@ -5,7 +5,7 @@
 from sys import argv
 import os
 import pathlib
-from product import product
+from contoso_chat.product import product
 from azure.identity import DefaultAzureCredential
 import prompty
 import prompty.azure