Both have follow-on PRs that tweak, but these contain the bulk:

GitHub
Sign in with a NIP-46 signer app by dadofsambonzuki · Pull Request #51 · teambtcmap/btcmap-admin
Summary
Nostr sign-in gains a NIP-46 transport and moves all three methods into one dialog, opened from the existing Sign in with Nostr button — ...
GitHub
feat(auth): sign in with a NIP-46 signer app #1550 by dadofsambonzuki · Pull Request #1551 · teambtcmap/btcmap.org
Does this PR address a related issue?
Closes #1550
A description of the changes proposed in the pull request
Nostr sign-in only knew about NIP-07 e...