ui: fix peoblem_detail display

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",

packages/ui-default/templates/problem_detail.html

@@ -9,7 +9,7 @@
   pretestConnUrl: "/conn/pretest?pid=" + pdoc.pid|default(pdoc.docId) + "&domainId=" + handler.domainId,
   codeLang: handler.user.codeLang,
   codeTemplate: handler.user.codeTemplate
-} }}
+}) }}
 {% if tdoc %}
   {{ set(UiContext, 'postSubmitUrl', url('contest_detail_problem_submit' if tdoc.docType == model.document.TYPE_CONTEST else 'homework_detail_problem_submit', pid=pdoc.docId, tid=tdoc.docId)) }}
   {{ set(UiContext, 'getSubmissionsUrl', url('contest_detail_problem_submit' if tdoc.docType == model.document.TYPE_CONTEST else 'homework_detail_problem_submit', pid=pdoc.docId, tid=tdoc.docId)) }}