<html lang="en"> how to modify it for any other locale in java View class?

I would like to specify different LANGUAGE for my view class (currently I see ) as all browser cause HASSLE to users and try to translate content (when they should NOT)
how do I specify that I want a different LANGUAGE in java View class? so that I get
so that when html is generated it is not <html lang="en"> but something else I choose say <html lang="de">. How can I accomplish this in vaadin 11.0??

For now I am doing by with

@Meta(content =  "de-DE" , name = "Content-Language")
@Meta(content = "notranslate", name = "google")