test(ci): add exporter heading levels and a11y typography smoke; update MAIN_PLAN

components/I18nProvider.tsx

@@ -0,0 +1,20 @@
+"use client"
+
+import { NextIntlClientProvider } from 'next-intl'
+import React from 'react'
+
+export default function I18nProvider({
+  locale,
+  messages,
+  children,
+}: {
+  locale: string
+  messages: Record<string, string>
+  children: React.ReactNode
+}) {
+  return (
+    <NextIntlClientProvider locale={locale} messages={messages}>
+      {children}
+    </NextIntlClientProvider>
+  )
+}