Enatega Customer Application (App Language)

Is your feature request related to a problem? Please describe.
The application is asking for a specific language to select and when the user does that, the whole application gets reloaded.

Describe the solution you'd like
the application should be able to picked the language the system is already using and make it its default language.

The issue names no files, tests, or entry points. Start by locating the customer application's language-selection and startup locale handling, then verify that the system language is used by default and that selecting a language does not reload the whole application.

Written by the indexing model from the issue text.