chore: Translate djangojs.po in ar

77% of minimum 30% reviewed source file: 'djangojs.po'
on 'ar'.

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

translations/edx-proctoring/edx_proctoring/conf/locale/ar/LC_MESSAGES/djangojs.po

@@ -196,6 +196,10 @@ msgstr "لمّا يبدأ بعد"
 msgid "You have not started your onboarding exam."
 msgstr "لم تُقدِم امتحانك التأهيلي بعد."
 
+#: static/proctoring/js/views/proctored_exam_info.js:18
+msgid "You have started your onboarding exam."
+msgstr "لقد بدأت امتحانك التأهيلي."
+
 #: static/proctoring/js/views/proctored_exam_info.js:46
 #: static/proctoring/js/views/proctored_exam_onboarding_view.js:32
 msgid "Approved in Another Course"