garage-week/storybook enhancements for future docs site

[caseyisonit]

@nikkimk, @KBmyer and I are taking a stab at bringing our 2nd-gen docs and IA to the future

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 31f00f8526285c47463f1920e9514f97cc377231

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[github-actions[bot]]

📚 Branch Preview Links

• Documentation Site (first-gen)
• Storybook (first-gen)
• Storybook (second-gen)

🔍 First Generation Visual Regression Test Results

When a visual regression test fails (or has previously failed while working on this branch), its results can be found in the following URLs:

• Spectrum | Light | Medium | LTR
• Spectrum | Dark | Large | RTL
• Express | Light | Medium | LTR
• Express | Dark | Large | RTL
• Spectrum-two | Light | Medium | LTR
• Spectrum-two | Dark | Large | RTL
• High Contrast Mode | Medium | LTR

Deployed to Azure Blob Storage: pr-5916

If the changes are expected, update the current_golden_images_cache hash in the circleci config to accept the new images. Instructions are included in that file. If the changes are unexpected, you can investigate the cause of the differences and update the code accordingly.