Initial commit (fork from ManiMatter/mirrarr)

Carved out the queue cleaning bits from mirrarr, without taking over the instance synchronization items.
Not tested yet.

docker/Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.9-slim-buster
+
+ENV IS_IN_DOCKER 1
+
+WORKDIR /app
+
+COPY docker/requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["python", "main.py"]