feat(scraps): Add documentation for SlideOverPanel

[gggritso]

This component has a bunch of use, including via GlobalDrawer but no Scraps story! I'm about to do some work with it (supporting deferred rendering, and overspring padding) and it's a lot easier to do that in Scraps.

This felt like the right time to lift this component up in the folder hierarchy, too, and convert to a named export.

Does this component need any API changes or improvements before it's "official"? e.g., collapsed is awkward, passing className IMO is awkward, and so on

All other feedback welcome

[linear]

DE-539 Add Scraps entry for `SlideOverPanel`

[JonasBa]

Does this component need any API changes or improvements before it's "official"? e.g., collapsed is awkward, passing className IMO is awkward, and so on

Definitely need some TLC, but I think it's a good start. Since I know you've worked on the transition config, wdyt about just making that sprint transition be the default? I don't even think we need or want to allow people to change that in this instance

[gggritso]

@JonasBa I would love to make the spring config the default, but I can't just yet! Spring can't be used in Dashboard right now (it's overridden there) because the overspring there looks very bad, because it's over a dark background. I'm going to fix the overspring soon, and then I can remove the customizable transition properties here 🙏🏻