Backups download and edit

[saeedvaziry]

Discussed in #424

^{Originally posted by miquelangeld January 7, 2025}
It would be quite useful to be able to download the backups from the database page at least for local backups.
Also it would be great the possibility to modify the interval of a backup.

[RichardAnderson]

Happy to take a look at the implementation of this feature - seems pretty well defined.

[saeedvaziry]

Right now deleting the files doesn't delete from storage provider as well.
Would be nice if you can cover this as well