* Making use of `prefers-reduced-motion` media query

As discussed in #25249 - if a user (Who is using Safari / iOS) requests
reduced motion in their system settings, we should avoid transitions.

* Ignoring prefers reduced motion for CSS Linting
* Updating copy clarifying the reduce motion functionality in accessibility.md

* Update issue template to break down by bug and template, add support doc to close #23133

* add links from readme for bug and feature templates

it's ≠ its

Add the column/grid to the example code (which is what makes it vertical in the first place)

Rely on `site.url` which is different for production. In that case do nothing with the search result, otherwise when in development remove our url from it.

Previously a search redirected to `https://getbootstrap.com/...`

They are converted when building.

Future-proof disabling of clicks on disabled `btn-link`. Fixes #25639
ensuring consistency between `btn-link` `<button>`s and `<a>`s when disabled.

* Prevent sign-in form from going outside viewport (#25388)

* Workaround IE centering bug

* #22600: prevent display:block for visible content

* allow transition for elements with show class

[Icons8](https://icons8.com/) is a great resource for icons.

They provide 15 different icon styles, exportable as fonts or svg

Minor edits for style and consistency