Import/export configuration and translations
The translations are not part of the configuration.

You can configure and export the source of translation files. One option is to have the local filesystem as the source. The translation files are stored locally in the sites/default/files/translations directory, but can change this directory on the File system configuration page.

What you could also configure and export how frequently you want to check for new interface translations for your currently installed modules and themes. At
/admin/config/regional/translate/settings

Check for updates


Never (manually, this is the default)
Weekly
Monthly


You can manually download the translations at:
/admin/reports/translations/check?destination=/admin/reports/translations