Save complete tracks and albums to the db for faster startup

- refactor function locations
- add logger
- check for new tracks instead of re-processing all files

server/app/logger.py

@@ -0,0 +1,7 @@
+from app.settings import logger
+
+
+class Log:
+    def __init__(self, msg):
+        if logger.enable:
+            print("\n🦋 " + msg + "\n")