added threading for the lyrics download for speed

added update print to console if updated

Dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.10-slim-bullseye
+WORKDIR /code
+COPY ./requirements.txt /code/requirements.txt
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+COPY ./src /code/app
+
+WORKDIR /code/app
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "80"]