added threading for the lyrics download for speed

added update print to console if updated

docker-compose.yml

@@ -0,0 +1,16 @@
+version: "3.9"
+services:
+  web:
+    build: .
+    ports:
+      - "8000:80"
+    environment:
+      - SPOTIFY_USERNAME=${SPOTIFY_USERNAME}
+      - SPOTIFY_PASSWORD=${SPOTIFY_PASSWORD}
+      - HOST_ORIGIN=${HOST_ORIGIN}
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost/api/health"]
+      interval: 2m
+      timeout: 10s
+      retries: 3
+      start_period: 30s