feat(footer): add Powered by andmore.pt credit

site/includes/footer.php

@@ -32,6 +32,7 @@
     <span class="footer-legal-sep" aria-hidden="true">·</span>
     <a href="<?= base_url('views/auth/login.php') ?>" class="footer-admin-link" rel="nofollow" aria-label="Acesso reservado" title="Backoffice"><i class="fas fa-lock"></i></a>
   </p>
+  <p class="small footer-legal">Powered by <a href="https://andmore.pt" target="_blank" rel="noopener">andmore.pt</a></p>
 </div>
 </footer>