Update Dockerfile

Dockerfile

@@ -15,9 +15,12 @@ RUN pip install --no-cache-dir faiss-cpu langchain-community gradio sentence-tra
 
 # Copy the current directory contents into the container at $HOME/app setting the owner to the user
 COPY --chown=user ./app.py /code/app.py
+COPY --chown=user ./common.py /code/common.py
+COPY --chown=user ./infer.py /code/infer.py
 COPY --chown=user ./vectorestore/ /code/vectorstore
 
 ENV GRADIO_SERVER_NAME="0.0.0.0"
+ENV PYTHONPATH=/code/
 EXPOSE 7860
 
 CMD [ "python", "app.py" ]