ui: typo fix

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.26.3",
+  "version": "4.26.4",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",

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

@@ -200,7 +200,7 @@ async function handleOperation(operation) {
   }
   try {
     await request.post('', { operation, pids, ...payload });
-    Notification.success(i18n(`Selected problems have been ${operation}d.`));
+    Notification.success(i18n(`Selected problems have been ${operation === 'copy' ? 'copie' : operation}d.`));
     await delay(2000);
     window.location.reload();
   } catch (error) {