ui: change to ts & tsx

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

@@ -0,0 +1,9 @@
+import { NamedPage } from 'vj/misc/Page';
+
+const page = new NamedPage('contest_main', () => {
+  $('[name="filter-form"] [name="rule"]').on('change', () => {
+    $('[name="filter-form"]').trigger('submit');
+  });
+});
+
+export default page;