Next Intl Add Language

This is a guide to add a new language to a Next.js project using next-intl for internationalization,

• For i18n, the application uses next-intl.
• All translations are in the directory ./​messages.
• The UI component is src/​components/​language-toggle.tsx.
• Routing and middleware configuration are handled in:
  • src/​i18n/​routing.ts
  • src/​middleware.ts

When adding a new language:

• Translate all the content of en.json to the new language. The goal is to have all the JSON entries in the new language for a complete translation.
• Add the path in routing.ts and middleware.ts.
• Add the language to language-toggle.tsx.