feat: Initial SiteBreadcrumbs

wp-content/themes/ccat/app/pages/devenir-membre.vue

@@ -1,9 +1,15 @@
 <script setup lang="ts">
+import type { BreadcrumbItem } from "@nuxt/ui";
+
 useSeoMeta({ title: "Devenir membre" });
+const breadcrumbs = [] as BreadcrumbItem[];
 </script>
 
 <template>
   <div>
-    <h1>Devenir membre</h1>
+    <SiteBreadcrumbs :breadcrumbs="breadcrumbs" />
+    <UPage>
+      <UPageSection title="Devenir membre" />
+    </UPage>
   </div>
 </template>