Add German translations

[simonua]

Addresses #39 for German (de).

@zkat, Would be good for another native speaker to review, but I think it's probably ~90% accurate ("deutsche Sprache, schwere Sprache") - definitely enough to inform what's meant and what's going on.

What do you set in an environment to use a locale other than the default?

[zkat]

@simonua LC_ALL=de npx ...

[simonua]

@zkat, ah, the Unix way. That won't work quite like that on Windows. Will have to check there. Maybe just change the language in the System to see whether/how it affects npx.

[katemihalikova]

@simonua It uses os-locale under the hood which tries to read env vars before falling back to reading OS config. You can run set LC_ALL=de to set/change the env var (for current cmd.exe window only). npx will then pick de locale up, but OS won't be otherwise affected because it's not a system env var.

[simonua]

@katemihalikova @zkat, the things I learn from you. =)

Thank you!

[zkat]

@simonua unless something strikes me as particularly obvious, I tend to just merge any ok-ish-looking PRs from people who I'm reasonably certain are native speakers. If there's a mistake, I'd rather take what's there and have a different native speaker roll in and fix it later. 👍