Use cache storage

### Your use case

#### What would you like to do?
Backup my apps, keeping the backups as small as possible. I can exclude types of storage: External data, OBB, Media data, Cache.

My HS is backed up anyway, thus I'm not worried about re-downloading content. The primary goal here is to keep logged in and settings after restoring.

### Have you considered any alternatives?

Excluding Element from backups.

### Additional context

_No response_

### Are you willing to provide a PR?

No