Main issue: - Introduce incremental backups (tool to consider: [Backrest](https://github.com/garethgeorge/backrest)). Also asked for via [HD#1127](https://helpdesk.nfdi4chem.de/#ticket/zoom/1127) Additional suggestions: - ability to check when the last backup was made. - auto-restore from backups if chemCLI is run from a folder containing the two backup files
