Documenting Core packages

[productdevbook]

Core Packages

• [ ] arrow (@YeSuX)
• [ ] collection
• [ ] direction
• [ ] dismissable-layer
• [ ] focus-guards
• [ ] focus-scope
• [ ] popper
• [ ] portal
• [ ] presence
• [ ] primitive
• [ ] provide
• [ ] roving-focus
• [ ] slot
• [ ] use-composable
• [ ] utils
• [ ] visually-hidden

Docs Github https://github.com/oku-ui/docs/tree/main/content/primitives

You need to open a 3rd menu there and document all packages here.

[productdevbook]

@YeSuX arrow docs You can send this to the first pr, let's not add bulk docs. We should improve the docs piece by piece.