feat: integrate LNBits wallet schema and configuration

- Added LNBits wallet schema to the admin UI, including validation and input components.
- Updated the services index to include LNBits in the available wallet options.
- Enhanced the wallet selection component to handle LNBits configuration input.

packages/server/lib/new-admin/config/accounts.js

@@ -103,6 +103,7 @@ const ALL_ACCOUNTS = [
     cryptos: [BTC, ZEC, LTC, BCH, DASH],
   },
   { code: 'galoy', display: 'Galoy', class: WALLET, cryptos: [LN] },
+  { code: 'lnbits', display: 'LNBits', class: WALLET, cryptos: [LN] },
   {
     code: 'bitstamp',
     display: 'Bitstamp',