fix: create user account message in dark mode

src/unfold/templates/admin/auth/user/add_form.html

@@ -2,7 +2,7 @@
 {% load i18n %}
 
 {% block form_top %}
-    <p class="bg-blue-100 mb-8 text-blue-600 px-3 py-3 rounded-md text-sm">
+    <p class="bg-blue-50 border-blue-200 mb-8 p-3 rounded-md text-blue-500 text-sm dark:bg-blue-500/20 dark:border-blue-500/10">
         {% if not is_popup %}
             {% translate 'First, enter a username and password. Then, you’ll be able to edit more user options.' %}
         {% else %}