Set cursor:pointer for <summary>

[andresgalante]

This PR changes the cursor to pointer on the docs.

@mdo I wonder if this belongs to reboot.

closes #24617

[mdo]

I wonder if this belongs to reboot.

Given it's an element, let's put it in Reboot. If it was a .class, it'd be something to reset elsewhere :). Let's also add a note to the Reboot docs to explain that we make this change.

[andresgalante]

Before we merge it, lets consider this: I found out why the cursor is text and not pointer:

If you have an anchor inside the summary, then the anchor will have a pointer:
https://codepen.io/pen/?editors=1010

[XhmikosR]

How about we just use our collapse?

[patrickhlauke]

Before we merge it, lets consider this: I found out why the cursor is text and not pointer:
If you have an anchor inside the summary, then the anchor will have a pointer

it's a pretty bad UI/UX decision at the moment in browsers. and as anchors/links in the summary would still be styled like normal links, it's not really problematic i'd say.

[patrickhlauke]

sorry @mdo, didn't notice the v4-stable project. have i messed up the release plan?

[mdo]

@patrickhlauke Nope, just trying to budget out issues and PRs :).