You might need to upgrade to 1.9.0 for the plugin to work, not sure.
Discussion
I'm not seeing any new plugin that will support this? Any details? nostr:npub1y24gz5gwucl79vtv4ctwpysl0r5m4xyzu2rgulnr44ks3t5mt92q4nz2ad I have upgraded to v1.9.0 but nothing obvious in plugs that is supporting this yet.
Manage plugins > Prism > Install
It will show up just like any other plugins once it's installed.

Your not confusing this with the Nip05 plugin, that is something different for support of nip05 file on BtcPay server domain. Nothing to do with zaps.
Found... Nostr
by Kukks
1.0.10
Allows you to verify your nostr account with NIP5 and zap like the rest of the crazies
I had to refresh a couple times for it to appear, seems to be a upgrade of the existing nostr plugin! Will try it out