complete german frontend translation for hwd 1.1.12 / 1.1.13

complete german frontend translation for hwd 1.1.12 / 1.1.13 based on
the latest english source file
Revert "Merge branch 'german_frontend'"

This reverts commit 7c8bdf8ead483817b2e16564a65dadca7af59a26, reversing
changes made to 4bb6607c033da536b02925c8a825f292f4f6fbaf.
Revert "Revert "Merge branch 'german_frontend'""

This reverts commit 2ba25b77996e2cdca6b64f1da8083b8ecbf39f34.
Revert "complete german frontend translation for hwd 1.1.12 / 1.1.13"

This reverts commit d5a27bcf70a3fd712ea17c9826df2e47d653ca9f.