Description

As a user, I want to set language preference to be default browser preference.

Acceptance Criteria

1. Add a checkbox to enable browser default for language across console
2. Checking the checkbox should disable the language preference dropdown and unchecking should enable it
3. If there is no preference, the console should default to browser default language.
4. use value of language in localStorage to load the language preference on loading console and switch to preferred language once it is detected
5. Upgrading from older release should maintain the already existing language preference.
6. rename `Language & region` tab to `Language`

Additional Details: