[Gelöst] Woocommerce login page not translated

Background of the issue:
I am trying to translate the login page of Woocommerce. The issue can be seen on this page: versteckter Link

Symptoms:
The page is always in English, even when French is selected.

Questions:
Why is the Woocommerce login page not translating to French?
How can I ensure the login page displays in the selected language?