- changed dockerapi to not return human readable values for df
- all caluclations now in KiB
- moved code from domain_admin to mailbox functions
- using actual occupied bytes as used quota
- all outputs now in *iB using formatBytes()
now only summing up the assigned domain quota for active domains, and not subtracting disc base occupied by mailboxes of inactive domains (inactive_bytes)
We need a additional variable for the mailcow-ui-domain, if the domain used for the mailcow ui differs from the hostname. Otherwise our users will get the login promt, when they try to access the mobileconfig file.