fix(gatekeeper): add missing i18n configuration to fix build failure

packages/gatekeeper/messages/en.json

@@ -0,0 +1,5 @@
+{
+  "LoginPage": {
+    "title": "Gatekeeper"
+  }
+}

packages/gatekeeper/package.json

@@ -11,9 +11,11 @@
     "test": "vitest run"
   },
   "dependencies": {
+    "@mintel/next-utils": "workspace:*",
     "clsx": "^2.1.1",
     "lucide-react": "^0.474.0",
     "next": "15.1.6",
+    "next-intl": "^3.26.5",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "tailwind-merge": "^2.6.0"

packages/gatekeeper/src/i18n/request.ts

@@ -0,0 +1,7 @@
+import { createMintelI18nRequestConfig } from "@mintel/next-utils";
+
+export default createMintelI18nRequestConfig(
+  ["en"],
+  "en",
+  (locale) => import(`../../messages/${locale}.json`),
+);