combine userdata and swing db into one

+ port populate to new db interface
+ add genrehashes and hash info to tracks
+ properly structure new db table files
+ move helpers to dedicated utils file
+ move settings from db to config file
+ move artists, albums, auth and favorites endpoint to new db interface
+ use folder store to index filepaths
+ paginate favorite pages
+ 56 moretiny changes 😅

pyproject.toml

@@ -28,6 +28,7 @@ flask-openapi3 = "^3.0.2"
 flask-jwt-extended = "^4.6.0"
 sqlalchemy = "^2.0.31"
 memory-profiler = "^0.61.0"
+sortedcontainers = "^2.4.0"
 
 [tool.poetry.dev-dependencies]
 pylint = "^2.15.5"