fix code

packages/ui-default/pages/contest_edit.page.ts

@@ -1,5 +1,5 @@
 import $ from 'jquery';
-import moment from 'moment-timezone';
+import moment from 'moment';
 import ProblemSelectAutoComplete from 'vj/components/autocomplete/ProblemSelectAutoComplete';
 import UserSelectAutoComplete from 'vj/components/autocomplete/UserSelectAutoComplete';
 import { ConfirmDialog } from 'vj/components/dialog';

packages/ui-default/templates/components/form.html

@@ -199,8 +199,7 @@
   <label class="checkbox">
     <input type="checkbox" name="{{ args.name }}"{% if args.value %} checked{% endif %}
       {{ form_attr('checkbox', args) }}
-    >
-    {% if args.placeholder %}{{ _(args.placeholder) }}{% endif %}
+    >{% if args.placeholder %}{{ _(args.placeholder) }}{% endif %}
   </label>
 </div>
 {% endmacro %}