few fixes

app/core/alert_manager.py

@@ -1,5 +1,4 @@
 from PyQt6.QtWidgets import QMessageBox
-from typing import Optional
 
 class AlertManager:
 

app/core/update_manager.py

@@ -1,7 +1,7 @@
 import requests
 from packaging import version
 from PyQt6.QtWidgets import QApplication
-from PyQt6.QtWidgets import QFileDialog, QDialog, QVBoxLayout, QTextEdit, QPushButton, QHBoxLayout, QLabel
+from PyQt6.QtWidgets import QFileDialog, QDialog, QVBoxLayout, QTextEdit, QPushButton
 from app.core.alert_manager import AlertManager
 from app.core.settings_manager import SettingsManager
 from app.core.language_manager import LanguageManager

app/ui/main_window.py

@@ -1,4 +1,4 @@
-from PyQt6.QtWidgets import QApplication, QMainWindow, QLabel
+from PyQt6.QtWidgets import QApplication, QMainWindow
 from PyQt6.QtGui import QResizeEvent, QCloseEvent
 from PyQt6.QtCore import QSize, QEvent
 from app.core.main_manager import MainManager, NotificationType

app/ui/windows/settings_window.py

@@ -1,4 +1,4 @@
-from PyQt6.QtWidgets import QWidget, QVBoxLayout, QComboBox, QLabel, QHBoxLayout, QSizePolicy
+from PyQt6.QtWidgets import QWidget, QVBoxLayout, QComboBox, QLabel, QHBoxLayout
 from PyQt6.QtCore import Qt
 from app.core.main_manager import MainManager, NotificationType
 from typing import Optional