Limit number of relays to publish zap receipts to

app/views/admin/settings/services/_nostr.html.erb

@@ -19,5 +19,15 @@
         title: "Public key",
         description: "The corresponding public key of the accounts service"
       ) %>
-<% end %>
 </ul>
+</section>
+<section>
+<h3>Zaps</h3>
+<ul role="list">
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :nostr_zaps_relay_limit,
+        title: "Relay limit",
+        description: "The maximum number of relays to publish zap receipts to"
+      ) %>
+</ul>
+<% end %>