Show total disk size of each backup run

[makemrproper]

As a user I want to know how large the daily backups I am doing are taking up on my drive.
It is practical for me if the web interface can inform me of this.

Such as in the summary under BACKUPS -> LISTINGS

[jdaviescoates]

I believe this is coming in 9.0

Edit: actually I think perhaps I'm wrong about that https://forum.cloudron.io/post/99869

[makemrproper]

Oh well. Technically storing the size values in an array or a dataframe and persisting them somewhere does not sound impossible.

[jdaviescoates]

@makemrproper yeah, and actually it seems I might've been right afterall! I was sure I'd read something about the size... so I just search that thread for size and it is indeed there:

Backup integrity - store size and checksum of backups.

If they've got the size stored then should be easy to display it somewhere too!