🎨 Consistency in source typing

src/importer/sources/lutris_source.py

@@ -1,5 +1,4 @@
 from abc import abstractmethod
-from functools import lru_cache
 from pathlib import Path
 from sqlite3 import connect
 from time import time
@@ -12,6 +11,7 @@ from src.utils.save_cover import resize_cover, save_cover
 
 
 class LutrisSourceIterator(SourceIterator):
+    source: "LutrisSource"
     import_steam = False
     db_connection = None
     db_cursor = None

src/importer/sources/steam_source.py

@@ -18,7 +18,6 @@ from src.utils.steam import SteamHelper, SteamInvalidManifestError
 
 class SteamSourceIterator(SourceIterator):
     source: "SteamSource"
-
     manifests: set = None
     manifests_iterator: Iterator[Path] = None
     installed_state_mask: int = 4