- Introduced background sync functionality for the Matrix client, allowing notifications to be received even when the app is backgrounded.
- Added new commands to start, stop, and get the state of background sync.
- Implemented a BackgroundSyncManager to manage sync state and credentials.
- Integrated matrix-sdk for handling Matrix interactions and notifications.
- Updated Cargo.toml to include necessary dependencies for background sync.
- Modified mobile capabilities to include opener permissions.
- Enhanced lib.rs to handle new commands and integrate background sync logic.
- Changed permission descriptions and constants in android-schema.json and mobile-schema.json to reflect new opener functionality.
- Updated capabilities.json to remove deprecated shell permissions and include new opener permissions.
- Refactored schema definitions to align with the new opener API, including changes to allowed and denied commands.
- Adjusted application references in schemas to clarify usage with URLs and paths.
