- Introduced `getAppEngine` method in the Electron context to retrieve the current app update engine.
- Updated the Settings component to manage and display the app update engine, allowing users to select between 'Native' and 'Chromium'.
- Enhanced the app update logic to persist the selected engine and ensure proper handling during updates.
- Improved UI in the NewAppUpdate component to show the engine type associated with updates.
- Refactored app update settings management to include engine normalization and validation.