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/lib/trackslib.py

@@ -13,16 +13,6 @@ from app.utils.progressbar import tqdm
 from app.utils.threading import ThreadWithReturnValue
 
 
-def validate_tracks() -> None:
-    """
-    Removes track records whose files no longer exist.
-    """
-    for track in tqdm(TrackStore.tracks, desc="Validating tracks"):
-        if not os.path.exists(track.filepath):
-            TrackStore.remove_track_obj(track)
-            trackdb.remove_tracks_by_filepaths(track.filepath)
-
-
 def get_leading_silence_end(filepath: str):
     """
     Returns the leading silence of a track.