cleanup

src/mainwindow.py

@@ -1,5 +1,4 @@
 import logging
-from typing import List
 
 from PySide6.QtWidgets import *
 from PySide6.QtGui import *
@@ -16,7 +15,6 @@ from src.settings.settingsstore import SettingsStore
 from src.ui.bigtext.highlightingdialog import HighlightingDialog
 from src.ui.tabs import Tabs
 from src.util.urlutils import url_is_file
-from functools import reduce
 
 from src.i18n import _