Refactor SettingsDialog for improved readability and maintainability

- Cleaned up whitespace and formatting throughout the settings_dialog.py file.
- Enhanced type hints for better clarity and type checking.
- Consolidated URL mapping handling in get_config_data method.
- Improved error handling and logging for configuration operations.
- Added comments for better understanding of the code structure and functionality.

src/webdrop_bridge/core/updater.py

@@ -231,9 +231,6 @@ class UpdateManager:
         except socket.timeout as e:
             logger.error(f"Socket timeout (5s) connecting to {self.api_endpoint}")
             return None
-        except TimeoutError as e:
-            logger.error(f"Timeout error: {e}")
-            return None
         except Exception as e:
             logger.error(f"Failed to fetch release: {type(e).__name__}: {e}")
             import traceback