Open #7211, #7214 and #7116 add German rows for 38 of the messages this
branch translates. A second row for the same key fails
bundled_catalogs_are_consistent once both sides merge, so this branch
drops its 38 rows and leaves those messages to the other pull requests.
The German lines in docs/localization-parity.md and
docs/target-app-parity.md give the new counts.