Bug fixes

Translation hotfix

Fix command discovery and move this entirely to a drush extension.

This won't work as a module anymore.

New beta features:
#3121227: Bring back Search etc. from Legacy Toolbar

- fixed typo introduced on 8.x-1.4

This release makes the tests pass. There are minor bug fixes, but it's compatible with current Drupal 8.8, 8.9, and 9.0 release versions!

There will be more API and code style changes coming before it reaches beta.