Which version of the app is deployed on the website?

[sebastianlay]

I noticed some missing translations on https://app.electricitymaps.com/map/ and wanted to contribute a fix. However, when building the project locally (from the /web folder on the latest master branch) I noticed a few differences (different navigation, different dropdowns, etc.). Most notably I saw that my local version was missing a bunch of translations that I can see on the website. So I was wondering where the difference is coming from.

I would like to add all translations for my language, but I don't want to add them when they seemingly already exist somewhere.