Merge pull request #56 from lnbits/add_client_for_dm

fix: use relative import

views_api.py

@@ -13,7 +13,6 @@ from lnbits.decorators import (
     require_admin_key,
     require_invoice_key,
 )
-from lnbits.extensions.nostrmarket.helpers import normalize_public_key
 from lnbits.utils.exchange_rates import currencies
 
 from . import nostr_client, nostrmarket_ext, scheduled_tasks
@@ -54,6 +53,7 @@ from .crud import (
     update_stall,
     update_zone,
 )
+from .helpers import normalize_public_key
 from .models import (
     Customer,
     DirectMessage,