How-To: Add new translations

[amanharwara]

1. Fork the repo & clone it.
2. Create a new branch.
3. Create a new folder under public/locales/ with the language code (e.g. hi for Hindi) as the name.
4. Add the language code to the languages array in the src/i18n/languages.config.ts file.
5. Create a new file translation.missing.json in the language folder.
6. Copy translation.json from locales/en into the language folder.
7. Edit the translation.json file in the language folder and change the values accordingly.
8. Commit the changes & push it.
9. Create a pull request.