Add support for @TopicsVisualStyle

[dobromir-hristov]

Bug/issue #, if applicable: 97716047

Summary

This PR add support to both the new docc @TopicsVisualStyle directive.

Note:
This PR assumes the RenderJSON based on some early discussions. It should be double checked when the DocC PR for this lands.

Dependencies

This PR builds on top of the work from a few other PRs:

#418
#409
#417
Docc PR - swiftlang/swift-docc#368

Testing

Steps:

1. Mount the provided doccarchive
2. Assert the Topics are hidden - http://localhost:8080/documentation/slothcreator/sloth
3. Assert the Topics section is a detailedGrid - http://localhost:8080/documentation/slothcreator/slothgenerator
4. Assert the Topics section is a compactGrid - http://localhost:8080/documentation/slothcreator/namegenerator

Checklist

Make sure you check off the following items. If they cannot be completed, provide a reason.

• Added tests
• Ran npm test, and it succeeded
• Updated documentation if necessary

[ethan-kusters]

Render node spec updates for this change are here: https://github.com/apple/swift-docc/pull/368/files#diff-fc7c8431152d3d494899ec4b551f1a5d1249ed44c853e05da1cc26374d9d4c54

[mportiz08]

Haven't had a chance to fully test this yet, but I gave an initial look at the code (mostly ignoring the changes from the card PR)

I'll probably be able to test this with some real content tomorrow.

[dobromir-hristov]

All done, give it another look.

[dobromir-hristov]

@swift-ci test

[dobromir-hristov]

@swift-ci test