Feature request: add Language translations

I have encountered Spanish bitcoiners and Spanish communities, and circular economy projects in the last months. Every time I showed Alby Go, I was asked, "Why is it not in Spanish?" I replied: "It's only Send and Receive...". And they told me each time "it needs to be in spanish or the shops won't adopt it, and users won't like it".

So language has been an adoption barrier. Let's add translations.

_I'm no expert in implementing translations, but if I am given some indications and guidance, I would love to do the hard work to make this happen._

The issue names no files, tests, or entry points. Start by locating how Alby Go currently stores and displays user-facing strings, then check whether a translation mechanism already exists. Done means Spanish is supported across the app's user-facing language and the result is verified in the mobile interface.

Written by the indexing model from the issue text.