Fix typescript errors for 'next-intl'

apps/researcher/next.config.mjs

@@ -1,13 +1,12 @@
-/**
- * @type {import('next').NextConfig}
- */
+// @ts-check
 
-import NextIntlPlugin from 'next-intl/plugin';
+import createNextIntlPlugin from 'next-intl/plugin';
 import MDXPlugin from '@next/mdx';
 
-const withNextIntl = NextIntlPlugin('./src/i18n.ts');
+const withNextIntl = createNextIntlPlugin('./src/i18n.ts');
 const withMDX = MDXPlugin();
 
+/** @type {import('next').NextConfig} */
 const nextConfig = {
   transpilePackages: ['@colonial-collections/ui'],
   experimental: {

apps/researcher/src/i18n.ts

@@ -1,5 +1,17 @@
+import {notFound} from 'next/navigation';
 import {getRequestConfig} from 'next-intl/server';
+import {locales} from './navigation';
+import {LocaleEnum} from '@/definitions';
 
-export default getRequestConfig(async ({locale}) => ({
-  messages: (await import(`./messages/${locale}/messages.json`)).default,
-}));
+export default getRequestConfig(async ({locale}) => {
+  if (!locales.includes(locale as LocaleEnum)) notFound();
+
+  return {
+    messages: (
+      await (locale === 'en'
+        ? // This will enable HMR for `en`
+          import('./messages/en/messages.json')
+        : import(`./messages/${locale}/messages.json`))
+    ).default,
+  };
+});

apps/researcher/tsconfig.json

@@ -6,6 +6,11 @@
       "@/*": ["./src/*"]
     }
   },
-  "include": ["**/*.ts", "**/*.tsx", ".next/types/**/*.ts", "src/lib", "src/types"],
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts"
+  ],
   "exclude": ["cypress", "**/*.cy.tsx"]
 }

packages/tsconfig/nextjs.json

@@ -14,6 +14,7 @@
     "incremental": true,
     "module": "esnext",
     "moduleResolution": "Bundler",
+    "declaration": false,
     "resolveJsonModule": true,
     "isolatedModules": true,
     "jsx": "preserve"