Function check_battery_optimization_status 

pub fn check_battery_optimization_status<R: Runtime>(
    app: AppHandle<R>,
) -> Result<BatteryStatus, Error>

Check the current battery optimization status.

Returns a BatteryStatus object with:

• isOptimized: true if the app is subject to battery optimization
• isIgnoringOptimizations: true if the app has unrestricted background access