test translations for correctness

This inspired by https://www.dokuwiki.org/teams:i18n:translation-check
by @schplurtz Instead of relying on an external script that only checks
after a translation w

test translations for correctness

This inspired by https://www.dokuwiki.org/teams:i18n:translation-check
by @schplurtz Instead of relying on an external script that only checks
after a translation was merged, this test can be run in out CI
environment and help us to avaoid merging faulty translations.

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