refactor: clean up unused imports and improve code organization

core/interface/gui.py

@@ -76,6 +76,7 @@ class MainWindow(QtWidgets.QMainWindow, QWidget):
         if state.ignore_updates is False:
             if platform.system() == "Windows":
                 result = check_for_updates()
+                if result != (None, None):
                     assets, latest_version = result
 
                     if assets:

core/utils/data/state.py

@@ -12,7 +12,7 @@ class AppState(QObject):
         self.post_urls: List[str] = []
         self.post_author: List[str] = []
         self.downloads: List[str] = []
-        self.version: str
+        self.version: str = "dev"
         self._image_path: str = ""
         self.ignore_updates: bool = False
         self.debug: bool = False

core/utils/network/update_checker.py

@@ -30,6 +30,8 @@ def check_for_updates():
                 for asset in assets:
                     print(f" - {asset['name']}: {asset['browser_download_url']}")
             return assets, latest_version
+        else: 
+            return None, None
     else:
         if state.debug:
             print("Already up-to-date.")