The language set in the user's profile does not have any effect on the selected language

[jonas-atmire]

Describe the bug

The language that is set in the user profile is completely disregarded

To Reproduce

Steps to reproduce the behavior:

1. Update the language for a specific user to something other than what is default on your repo
2. Log in as that user
3. The actual language is completely disregarded

Expected behavior

Either there is no language selection on the profile page is completely left out, or the preferred language is actually taken into account when displaying the messages.

• Checking out the code, I can see that that section is actually commented out: https://github.com/DSpace/dspace-angular/blob/main/src/app/core/locale/locale.service.ts#L94-L114

Related work

Seems similar/related to #301