fr: added announcements section

src/i18n/fr.json

@@ -761,6 +761,27 @@
     },
     "staff": "Staff"
   },
+  "announcements": {
+    "page_header": "Annonces",
+    "title": "Annonce",
+    "mark_as_read_action": "Marquer comme lue(s)",
+    "post_form_header": "Créer une annonce",
+    "post_placeholder": "Écrivez votre annonce ici",
+    "post_action": "Publier",
+    "post_error": "Erreur: {error}",
+    "close_error": "Fermer",
+    "delete_action": "Supprimer",
+    "start_time_prompt": "Commencer: ",
+    "end_time_prompt": "Terminer: ",
+    "all_day_prompt": "Journée entière",
+    "published_time_display": "Publiée à {time}",
+    "start_time_display": "Commence à {time}",
+    "end_time_display": "Termine à {time}",
+    "edit_action": "Editer",
+    "submit_edit_action": "Envoyer",
+    "cancel_edit_action": "Annuler",
+    "inactive_message": "Cette annonce est inactive"
+  },
   "domain_mute_card": {
     "mute": "Masqué",
     "mute_progress": "Masquage…",