Approval.

backend/fr/login.json

@@ -10,6 +10,7 @@
         "log_in": "Log in",
         "avg_text_len": "Average object description length",
         "login_using_idp": "Login using your institution's identity provider",
-        "select_idp": "Select an identity provider"
+        "select_idp": "Select an identity provider",
+        "login_using_device": "Login using device"
     }
 }