ui: fix page navigation

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.22.14",
+  "version": "4.22.15",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",

packages/ui-default/pages/problem_main.page.js

@@ -230,7 +230,7 @@ const page = new NamedPage(['problem_main', 'problem_category'], () => {
   });
   $(document).on('click', 'a.pager__item', (ev) => {
     ev.preventDefault();
-    pjax.request($(ev.currentTaget).attr('href')).then(() => window.scrollTo(0, 0));
+    pjax.request({ url: $(ev.currentTaget).attr('href') }).then(() => window.scrollTo(0, 0));
   });
   $(document).on('vjContentNew', (e) => {
     createHint('Hint::icon::difficulty', $(e.target).find('th.col--difficulty'))