feat(SectionGallery): add section gallery components

[kmcfaul]

Adds suite of SectionGallery components, loosely based on current org counterparts.

I included two test md/jsx files to showcase the updated landing page structure. Landing pages must have an id of landing, a section, and a title for display. sortValue can be used to control where in the nav list the landing page is shown. The component data file (compared to org) is now JSX and contains JSX directly instead of needing to parse JSON into JSX.

I also updated the [...tab].astro, [...page].astro, and landing.astro to only match relevant routes instead of mapping the whole collection. Now landing.astro will only match for pages whose id is "landing", tab.astro will only match for pages with a tab, and page.astro should match everything except for landings (component tab pages should still be rerouted to tab.astro).

Once the examples/JS in mds is rendering properly I can revisit to test SectionGallery, but otherwise I did test this locally by inserting the component directly into landing.astro.

[kmcfaul]

One question I have is how we want to specify exports for things like SectionGallery, since the other components probably don't need to be exposed. Or if we want these type of components to live in the pf-docs instead of the framework/doc-core?

[kmcfaul]

This will be easier to test out after #49 merges

[wise-king-sullyman]

Unit tests for anything that we don't plan on replacing ASAP?

I'd be alright with that being done in a followup though.

[kmcfaul]

I think maybe move that to a follow up, I'm currently unsure how to go about testing things that live in the code fences? Maybe can pull the functions into a separate file

[wise-king-sullyman]

Yeah the stuff in the astro files I'm also not sure of how to test yet, and that's a broader thing we need to figure out. I'll make an issue for that if we don't already have one.

At the moment I think we're just calling all the React/TS stuff being tested good enough, but like I said I would be fine with you doing that under a followup if you want to get this issue closed.

[rebeccaalpert]

Just a couple of questions about types and image behavior - otherwise this looks good to me. :) Feel free to ignore them if they're dumb n00b comments.

[rebeccaalpert]

Thank you!

[dlabaj]

LGTM! Thanks @kmcfaul

[github-actions]

🎉 This PR is included in version 1.8.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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