Enable site translations on NavHub

[proletesseract]

Description

Currently NavHub is only displayed in english, there should be multiple language translations like on navcoin.org

Motivation

Increase access to the site for non-english readers.

Acceptance Criteria

• [ ] Language switcher is available in the menu.
• [ ] At least one language translation is added (suggestion: spanish).
• [ ] Changes display correctly on desktop / mobile.
• [ ] Translations have been added or ammended as necessary.

[iamjohn96]

Hello sir, How can I participate in this project? I'm from Korea and do you need a translation into Korean as well ?

Many Thanks,