chore: Translate transifex_input.json in ar

82% of minimum 30% reviewed source file: 'transifex_input.json'
on 'ar'.

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

translations/frontend-app-library-authoring/src/i18n/messages/ar.json

@@ -169,7 +169,7 @@
   "library.block.block.edit_link": "تعديل",
   "library.block.aside.title": "أضف محتوى إلى مكتبتك",
   "library.block.aside.text.1": "أضف مكون إلى مكتبتك لاستخدامه في الدورات التدريبية.",
-  "library.block.aside.help.link": "",
+  "library.block.aside.help.link": "عرض المزيد عن مكتبات المحتوى",
   "library.block.aside.publish": "",
   "library.block.aside.discard": "",
   "library.block.aside.delete": "حذف المحتوى",