WebUI - Services / UPS / Settings: Save button remains disabled after setting changes

None PR: https://github.com/truenas/webui/pull/6419

13.0 PR: https://github.com/truenas/webui/pull/6418

Hello : Help text for the "Port or Hostname" field says, that the serial or USB port connected to the UPS or
the IP/hostname of a SNMP UPS device should be entered. (see: screenshot)

In my case, the UPS isn't connected directly by USB nor serial to the server running TrueNAS.
The UPS is connected to another server running "Network UPS Tools" ( https://networkupstools.org/ ).
Remote access to the server running "Network UPS Tools" is established successfully with the
settings given in fields: "UPS Mode", "Remote Host", "Remote Port", "Monitor User" and "Monitor Password".

As the remote "Network UPS Tools" server doesn't provide access via SNMP protocol nor the UPS isn't
connected directly to the server, there is no reasonable value to set to the "Port or Hostname" field
from my point of view.

Must this field really be mandatory, or should it be optional for the described use case of a slave UPS 
managed by an remote "Network UPS Tools" server?

  Please try to fill the `Port or Hostname` field.
Thank you

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