Backups 
### Current Situation

Currently, the backup is performed manually or created automatically every day and kept for 7 days. But they are not easily accessible directly from the card.

### Proposed Change

It would be good for such a backup to be created automatically and saved on the memory card in the subfolder "/backups" in main directory so it will be easy accessible. 

Maybe with the possibility of choosing the backup frequency from 1 day to 1 month and choosing how many backups should be before they are overwritten?

### Additional Context

In case of a failure, we pull out the card, copy a backup from it, flash SD and restore the backup.