German translation: Country Login Check by Andy 1.0

This is a german translation (gender neutral) for the AddOn -> Login Registration Check by @AndyB

In this translation, direct addressing with e.g. "Du" or "Sie" is avoided.

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Installation / Using:
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[Appearance] -> [Languages & phrases] -> [Languages]
=> [Import] -> [Languages] -> choose this file and
-> Overwrite language [select the respective language into which the translation is to be added]