Nice article! Very cool to see the language localization in action in a React app.
BTW you can get syntax highlighting in your Medium articles by posting your code as a public gist at gist.github.com then posting that link in instead of the code block. Medium will pick it up as an embed.
Also I was hoping to play with the app in something like codesandbox.io 😁 Maybe next time you can post a demo too. Have a good one and thanks again!