Added missing data- prefix. (go-gitea#17884)

Author: KN4CK3R

web_src/js/features/tablesort.js

@@ -1,8 +1,8 @@
 export default function initTableSort() {
   for (const header of document.querySelectorAll('th[data-sortt-asc]') || []) {
-    const sorttAsc = header.getAttribute('sortt-asc');
-    const sorttDesc = header.getAttribute('sortt-desc');
-    const sorttDefault = header.getAttribute('sortt-default');
+    const sorttAsc = header.getAttribute('data-sortt-asc');
+    const sorttDesc = header.getAttribute('data-sortt-desc');
+    const sorttDefault = header.getAttribute('data-sortt-default');
     header.addEventListener('click', () => {
       tableSort(sorttAsc, sorttDesc, sorttDefault);
     });