Updated Nostr-Login widget with "nostrconnect:" support!

Below is a short demo. We reworked the UI to group the options better, and the main addition is support for nostrconnect: nip46 connection strings. These allow us to have a one-click experience when connecting to key store, instead of having to enter a user name. Bonus - quick access to Amber app!

Npub.pro sites and all apps using latest nostr-login should be updated now.