update bilingual

lib/views/admin/customize.html

@@ -1,6 +1,6 @@
 {% extends '../layout/admin.html' %}
 
-{% block html_title %}カスタマイズ · {% endblock %}
+{% block html_title %}{{ t('Customize') }} {% endblock %}
 
 {% block html_additional_headers %}
   <!-- CodeMirror -->