Enhance the app lock

[Cirooo]

Checklist

• I have checked and there are no existing issues - open or closed - which request the same feature.
• I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
• This issue contains only one feature request.

Feature description

Please lock the app again when I leave the app page.
For example, go back to home page or switch to other apps.

Why do you want this feature?

I enable the biometric unlock, it's convenient to lock and unlock, just follow the behavior as nextcloud app, it supports such model.

Additional information

No response