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.

No file or test is named in the issue. Start by locating the customer application's language-selection entry point and determine how it reloads after a selection; done means it can use the system language as the default without requiring a specific manual choice.

Written by the indexing model from the issue text.