Approval.

backend/hu/user.json

@@ -122,6 +122,8 @@
         "frontend_only_user": "Speci\u00e1lis funkci\u00f3k (frontend)",
         "username_too_short": "Username must be at least 5 characters long",
         "login_log": "Login log",
-        "user_profile": "User profile"
+        "user_profile": "User profile",
+        "successful_login": "Successful login",
+        "sso": "Single Sign-On"
     }
 }