fix(hf_token): export HF_TOKEN during build

Dockerfile

@@ -17,6 +17,8 @@ COPY --chown=user . /app
 
 # Download at build time,
 # to ensure during restart we won't have to wait for the download from HF (only wait for docker pull).
+RUN export HF_HOME=/app/.cache/huggingface
+RUN export HF_TOKEN=${HF_TOKEN}
 RUN python /app/download_model.py
 
 EXPOSE 7860