Description of problem:

While creating a user, the system does not select the default language and timezone; instead, it sets the language to 'Català' and different timezone.
Create a user and selected the Impersonate option, some text appears in a different language. Additionally, when you click on the eye icon and return to the admin panel, you will notice that some naming conventions have changed in certain places.
How reproducible:

Always

Is this issue a regression from an earlier version:

Yes (snap 88)

Steps to Reproduce:

1. Administer -> Users -> Create one user

Actual behavior:
When we try to create a user, it uses a different language and timezone instead of the default.

Expected behavior:
The default language and timezone should be set based on the previously used settings, using the browser's locale for language and the browser's timezone for timezone.