[freeipa PR#4764][opened] [Backport][ipa-4-8] WebUI: Add units to some DNS zone and IPA config fields

[abbra]

   URL: https://github.com/freeipa/freeipa/pull/4764
Author: abbra
 Title: #4764: [Backport][ipa-4-8] WebUI: Add units to some DNS zone and IPA config
fields
Action: opened

PR body:
"""
This PR was opened automatically because PR #4757 was pushed to master and backport to
ipa-4-8 is required.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/4764/head:pr4764
git checkout pr4764