More languages and encryption

I nerd sniped myself with this fun weekend project so much that I couldn't stop adding features to it.

The game will now encrypt the URL so you can't easily guess the word by Base64-decoding it (thanks to the SubtleCrypto browser APIs this wasn't too difficult). 🔒

I also added multiple keyboards so you can enter words in different languages. 🇺🇸 🇩🇪 🇫🇷 🇵🇱