This is a bug, but the mixin just ignored undefined here.
The next version will be stricter and raises an error in this case.

chore(deps): lock file maintenance

See merge request !61

chore(deps): update dependency mocha to v9

See merge request !60

Just to test if/how this works.
It now uses "dbp-auth" instead of "translation", which was the i18next default.

We need a separate i18next instance per component instance and
call setOverrides() to override the translations.

Create a new instance with createInstance() and call setOverrides()
with override data to override translations.

See the tests for some examples.