Docs: keep context between older Bootstrap versions and the latest

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

Let's consider a search engine request "bootstrap customize". First link in the results redirects us to https://getbootstrap.com/docs/5.0/customize/overview/. This is not the latest version (due to another issue of referencing) so I go to the versions selector and choose "Latest (5.2.x)". I'm redirected to https://getbootstrap.com/docs/5.2/getting-started/introduction/.

Expected: being redirected to https://getbootstrap.com/docs/5.2/customize/overview/. This is very frustrating for the user because the initial request was to find information about customization

I know there were some changes recently where now it works the other way around; if I go to https://getbootstrap.com/docs/5.2/customize/overview/ and choose the v5.0 in the versions selector, then I will be redirected to https://getbootstrap.com/docs/5.0/customize/overview/. Note: It works from v5.2 to v5.1 and v5.0 but not to v4.

Thanks @HiDeoo for pointing it out