[Web] Set pageLength to pagination_size + repect savedState...

Fix width in quarantine table.

data/web/templates/user_domainadmin_common.twig

@@ -4,7 +4,7 @@
   var acl = '{{ acl_json|raw }}';
   var lang = {{ lang_user|raw }};
   var csrf_token = '{{ csrf_token }}';
-  var pagination_size = '{{ pagination_size }}';
+  var pagination_size = Math.trunc('{{ pagination_size }}');
   var mailcow_cc_username = '{{ mailcow_cc_username }}';
   var user_spam_score = [{{ user_spam_score }}];
   var lang_datatables = {{ lang_datatables|raw }};