open https://gitlab.synchro.net/main/sbbs/-/issues/610

It may be useful for the sysop to view IP addresses for the nodes that are connecting or connected via the nodelist.js utilities.

As discussed on irc, please add this ability for sysop users.
see also https://gitlab.synchro.net/main/sbbs/-/commit/b4639b0f65a9ca5300f97099

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