fix(docs): reserve height for breadcrumbs on server render

[ReallyBadNews]

Closes #1711

✅ Checklist

• I have followed every step in the contributing guide (updated 2022-10-06).
• The PR title follows the convention we established conventional-commit
• I performed a functional test on my final commit

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Changelog

Move the margin and height to the div wrapping the BreadCrumbs component.

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Screenshots

Before:

CleanShot.2023-12-28.at.13.18.56.mp4

After:

CleanShot.2023-12-28.at.13.19.24.mp4

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Name	Status	Preview	Comments	Updated (UTC)
create-t3-app	✅ Ready (Inspect)	Visit Preview	💬 1 unresolved ✅ 1 resolved	Dec 28, 2023 8:12pm