chore: Translate djangojs.po in fr_CA

99% of minimum 50% translated source file: 'djangojs.po'
on 'fr_CA'.

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

translations/edx-platform/conf/locale/fr_CA/LC_MESSAGES/djangojs.po

@@ -2164,9 +2164,9 @@ msgstr "Afficher toutes les réponses"
 #: common/static/common/js/discussion/views/discussion_thread_view.js:274
 msgid "Showing first response"
 msgid_plural "Showing first {numResponses} responses"
-msgstr[0] ""
-msgstr[1] ""
-msgstr[2] ""
+msgstr[0] "Affichage de la première réponse"
+msgstr[1] "Affichage des {numResponses} premières réponses"
+msgstr[2] "Affichage des {numResponses} premières réponses"
 
 #: common/static/common/js/discussion/views/discussion_thread_view.js:287
 msgid "Load all responses"