ui: fix pagination

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.22.16",
+  "version": "4.22.17",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",

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

@@ -230,12 +230,12 @@ const page = new NamedPage(['problem_main', 'problem_category'], () => {
   });
   $(document).on('click', 'a.pager__item', (ev) => {
     ev.preventDefault();
-    pjax.request({ url: $(ev.currentTaget).attr('href') }).then(() => window.scrollTo(0, 0));
+    pjax.request(ev.currentTarget.getAttribute('href')).then(() => window.scrollTo(0, 0));
   });
   $(document).on('vjContentNew', (e) => {
-    createHint('Hint::icon::difficulty', $(e.target).find('th.col--difficulty'))
+    createHint('Hint::icon::difficulty', $(e.target).find('th.col--difficulty'));
   });
-  createHint('Hint::icon::difficulty', $(document).find('th.col--difficulty'))
+  createHint('Hint::icon::difficulty', $(document).find('th.col--difficulty'));
 });
 
 export default page;

packages/ui-default/utils/pjax.js

@@ -48,6 +48,7 @@ function decProgress() {
 }
 
 pjax.request = async (opt) => {
+  if (typeof opt === 'string') opt = { url: opt };
   const options = {
     method: 'get',
     push: true,