An option to always redirect to chosen Django version

[kowal-tbg <paweltbg94@…>]

I usually use Google and stackoverflow to find interesting topics/problems solutions associated with Django. But the links in search results are pointing to various documentation versions (mostly to 'dev'). It would be a nice feature if I could have an toggleable option to choose and save my Django version, so the links with any other versions would always redirect me to the correct one or display an error message if given topic is not available in this version. For now I always need to choose my version manually every time I visit interesting link from outside the docs which is little annoying.

[Tim Graham]

Duplicate of #20731 and #22727