chore: upgrade tailwind css from 3.4 to 4.3

templates/admin/teamer/mailing.html.twig

@@ -61,7 +61,7 @@
                 </div>
                 <div class="flex flex-wrap gap-2">
                     {% for placeholder, label in placeholders %}
-                        <span class="inline-flex items-center space-x-1 py-1 px-2 bg-gray-50 border border-gray-200 rounded">
+                        <span class="inline-flex items-center space-x-1 py-1 px-2 bg-gray-50 border border-gray-200 rounded-sm">
                             <code>{{ placeholder }}</code>
                             <span>{{ label }}</span>
                         </span>