message: Remove question mark from "Complain" nav title string
diff: "LANGUAGE": "English",
  "NAV_SEARCH": "Search",
  "SEARCH_PLACEHOLDER": "Search...",
  - "NAV_COMPLAIN": "Complain?",
  + "NAV_COMPLAIN": "Complain",
  "TITLE_LOGIN": "Login",
  "MANDATORY_EMAIL": "Please provide an email address.",
  "MANDATORY_PASSWORD": "Please provide a password.",
  