Added support for yt-dlp 'temp' path

- Added support for yt-dlp 	emp path
- Formatted with Black
- Updated README to reflect new TEMP_DIR setting; linted
- Modified Dockerfile to strip carriage return characters from docker-entrypoint.sh script to fix building the image on Windows
- Added example docker-compose.yml config

docker-entrypoint.sh

@@ -2,15 +2,15 @@
 
 echo "Setting umask to ${UMASK}"
 umask ${UMASK}
-echo "Creating download directory ${DOWNLOAD_DIR} and state directory ${STATE_DIR}"
-mkdir -p "${DOWNLOAD_DIR}" "${STATE_DIR}"
+echo "Creating download directory (${DOWNLOAD_DIR}), state directory (${STATE_DIR}), and temp dir (${TEMP_DIR})"
+mkdir -p "${DOWNLOAD_DIR}" "${STATE_DIR}" "${TEMP_DIR}"
 
 if [ `id -u` -eq 0 ] && [ `id -g` -eq 0 ]; then
     if [ "${UID}" -eq 0 ]; then
         echo "Warning: it is not recommended to run as root user, please check your setting of the UID environment variable"
     fi
     echo "Changing ownership of download and state directories to ${UID}:${GID}"
-    chown -R "${UID}":"${GID}" /app "${DOWNLOAD_DIR}" "${STATE_DIR}"
+    chown -R "${UID}":"${GID}" /app "${DOWNLOAD_DIR}" "${STATE_DIR}" "${TEMP_DIR}"
     echo "Running MeTube as user ${UID}:${GID}"
     su-exec "${UID}":"${GID}" python3 app/main.py
 else