feat: connexion button in SiteFooterBottom

wp-content/themes/headless/app/components/site/SiteFooterBottom.vue

@@ -1,9 +1,14 @@
-<script setup lang="ts"></script>
+<script setup lang="ts">
+const { connexionButton } = useAuthConnexion();
+</script>
 
 <template>
   <div class="bg-inverted py-1.5 text-inverted">
     <div class="container flex flex-col items-center gap-3 sm:flex-row">
       <SiteFooterCopyright class="sm:mr-auto" />
+      <AuthState>
+        <UButton v-bind="connexionButton" color="neutral" variant="link"></UButton>
+      </AuthState>
       <SiteFooterCredits />
     </div>
   </div>