Add translation to Unauthorized page

- Swapped container <div> for boostrap container

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: Ie3f8539fc4b1e3496d77277319f77a9b51574885
diff --git a/src/locales/en-US.json b/src/locales/en-US.json
index 8da54fd..2db669b 100644
--- a/src/locales/en-US.json
+++ b/src/locales/en-US.json
@@ -353,6 +353,9 @@
       "successReplaceCertificate": "Successfully replaced %{certificate}."
     }
   },
+  "pageUnauthorized": {
+    "description": "The attempted action is not accessible from the logged in account. Contact your system administrator to check your privilege role."
+  },
   "countries": {
     "AF":"Afghanistan",
     "AL":"Albania",