chore: Translate transifex_input.json in zh_CN

99% of minimum 50% translated source file: 'transifex_input.json'
on 'zh_CN'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

translations/frontend-app-learning/src/i18n/messages/zh_CN.json

@@ -23,6 +23,8 @@
   "learn.sequence.entranceExamTextNotPassing": "您在本测验的分数必须达到或高于 {required_score}% o才能访问课程。您的当前分数为{current_score}%.",
   "learn.sequence.entranceExamTextPassed": "你的分数是 {entranceExamCurrentScore}%。你已经通过了入学考试。",
   "learn.coursewareSerch.openAction": "Search within this course",
+  "learn.coursewareSerch.closeAction": "Close the search form",
+  "learn.coursewareSerch.searchModuleTitle": "Search this course",
   "learning.dates.badge.completed": "已完成",
   "learning.dates.badge.dueNext": "下一个到期",
   "learning.dates.badge.pastDue": "逾期",