Donate button is not pointing to localised donate.torproject.org

If I'm on www.torproject.org and I change the language to spanish, the donate button text changes to "Dona Ahora."

If I then click on that link, it takes me to https://donate.torproject.org/ instead of https://donate.torproject.org/es

Ideally we should localise these links when possible (or standardise the links so that it can be done automatically.