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 😅

app/models/favorite.py

@@ -0,0 +1,11 @@
+from dataclasses import dataclass
+from typing import Any, Literal
+
+
+@dataclass
+class Favorite:
+    hash: str
+    type: Literal["album", "track", "artist"]
+    timestamp: int
+    userid: int
+    extra: dict[str, Any]