Backup data "Now" Button

[davidep (Davide Principi)]

This recalls some discussions we had in the past

Enhancement #2690: Backup data: add "Backup now" button - NethServer 6 -...

Button on WebUI to check Backup-Data configuration

It would be nice to kick off a backup from backup-data immediately so that you could get some of that safety immediately, or so you could test your configuration to make sure it works. Another nice feature would be a display of the success/failure of the last backup.

/edit @jlibster why do you need it?