chore: Translate djangojs.po in fr_CA

98% 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

@@ -920,9 +920,9 @@ msgstr "Une erreur est survenue lors de l'export."
 #: cms/static/js/views/group_configuration_details.js:71
 msgid "Contains {count} group"
 msgid_plural "Contains {count} groups"
-msgstr[0] ""
-msgstr[1] ""
-msgstr[2] ""
+msgstr[0] "Contient {count} groupe"
+msgstr[1] "Contient {count} groupes"
+msgstr[2] "Contient {count} groupes"
 
 #: cms/static/js/views/group_configuration_details.js:82
 #: cms/static/js/views/partition_group_details.js:66