Fixes incomplete translation support of "Defaults" table

Inside of administration section, some rows of default quotas table
(e.g. Volumes, Metadata Items, Instances, etc.) were coded using its
name instead of a locale value for its translation.

Change-Id: Iccd163f9a9f35358bf9213491301b070368aff04
Closes-Bug: #1224824
Merge "Fixes incomplete translation support of "Defaults" table"