update ja

lib/locales/ja/translation.json

@@ -327,7 +327,8 @@
         "user_list": "ユーザー一覧",
         "Date created": "作成日",
         "Last login": "最終ログイン",
-        "Manage": "操作"
+        "Manage": "操作",
+        "Edit menu": "編集メニュー"