Set styles for 'Select' component

Change-Id: I279d28e478a3d63b6d620f5362580854a0e62b3f
diff --git a/client/src/locale/fr/translation.json b/client/src/locale/fr/translation.json
index c11d93b..7250e0e 100644
--- a/client/src/locale/fr/translation.json
+++ b/client/src/locale/fr/translation.json
@@ -29,6 +29,7 @@
   "conversation_title_three": "{{member0}}, {{member1}} et {{member2}}",
   "conversation_title_four": "{{member0}}, {{member1}}, {{member2}}, +1 autre membre",
   "conversation_title_more": "{{member0}}, {{member1}}, {{member2}}, +{{excess}} autres membres",
+  "select_placeholder": "Sélectionner une option",
   "dialog_close": "Fermer",
   "dialog_cancel": "Annuler",
   "Menu": "Menu",