Add translations for German store

[sync-by-unito]

Add translations to the i18n library for the german store.

Acceptance criteria

1. Translations for each translatable phrase are added to the lang/de.js file

How to test

1. Go to german store
2. Go through each page and check if there are any non translated phrases.

┆Attachments: missing-translations.txt

[sync-by-unito]

➤ Marcin Kwiatkowski commented:

Ready for CR: #459 ( https://github.com/vuestorefront/magento2/pull/459|smart-link )

[sync-by-unito]

➤ Bartosz Herba commented:

Marcin Kwiatkowski Looks good

[sync-by-unito]

➤ Marcin Kwiatkowski commented:

Merged to dev.