Feat: Add support for horizontal orientation to GridList & ListBox

[nwidynski]

This PR adds support for horizontal orientations to ListLayout and affected components in preparation for a Carousel contribution.

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
• Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

🧢 Your Project:

[nwidynski]

@LFDanLu Would you be so kind to issue a build for this PR? I'm going insane because of a bug with virtualized dnd, which I can't seem to get rid of locally, even after reverting all changes and clearing caches. I would really like to know whether the issue exists on remote 😅

[nwidynski]

@majornista Should we set aria-orientation only if deviating from the implicit orientation as defined in each role spec? I adjusted useTabList as well to match, let me know what you think 🙏

[LFDanLu]

@nwidynski heya sorry about the delay, opened #8544 for your build

[nwidynski]

@LFDanLu Thanks! I will take a look tmrw, otherwise this is ready for review if the team finds time 👍

[LFDanLu]

sounds good, we are gearing up for a release very soon, but noted this one down (and #8523) for the team to checkout right after!

[LFDanLu]

Will be bring this up with the team tomorrow, but looks good to me at a glance, thanks!

[LFDanLu]

mainly wondering if some of the changes/refactors can be simplified since we already supported orientation for Listbox previously

[nwidynski]

@LFDanLu Maybe the PR title is misleading - The primary target of this is to add orientation to the Layout class and its derivates, e.g. ListLayout. While the Listbox did support orientation, it was only affecting keyboard movement and not visual layout for virtualization.