fix duplicate artist and album color entry in db

+ Remove folder store
+ Reduce fuzzy search score cutoff from 90% to 75%
+ use inheritance to init Artist class
+ misc

app/api/settings.py

@@ -8,7 +8,6 @@ from app.db.sqlite.settings import SettingsSQLMethods as sdb
 from app.utils.generators import get_random_str
 from app.utils.threading import background
 
-from app.store.folder import FolderStore
 from app.store.albums import AlbumStore
 from app.store.tracks import TrackStore
 from app.store.artists import ArtistStore
@@ -27,7 +26,6 @@ def reload_everything():
     Reloads all stores using the current database items
     """
     TrackStore.load_all_tracks()
-    FolderStore.process_folders()
     AlbumStore.load_albums()
     ArtistStore.load_artists()