Enable translations for makecode.adafruit.com

[fede2cr]

I'm translating learning guides from en to es, and noticed that while sites like the microbit makecode do show spanish translations quite nicely, the adafruit site does not appear to have any es translation applied to it when using the same browser/configuration as used on the microbit site.

I would be very nice for non-english speaking audience of the site and tool if the translations, such as spanish, can be applied to the site.

Thanks in advance,