fix

app/views/admin/layouts/themes/pure/_hero.html.erb

 <div class="hero">
   <div class="container-fluid">
-    <h1><%= yield :title %></h1>
-    <div class="float-md-end text-end mt-md-n4">
-      <%= yield :title_right %>
+    <div class="d-flex">
+      <h1><%= yield :title %></h1>
+      <div class="ms-xl-auto text-xl-end mt-2">
+        <%= yield :title_right %>
+      </div>
     </div>
     <%= render_breadcrumbs builder: Osuny::BreadcrumbsOnRailsBuilder %>
   </div>