[Tails-l10n] [de][review] unfuzzy german strings

ey there, 'made some things clear' on the German files, got rid of fuzzy strings.


Please review:
repo: https://git-tails.immerda.ch/emmapeel/tails
branch: fuzzy_german
commit: d43666ef4f

15 files changed, 79 insertions(+), 98 deletions(-)