Remove scroll-nojump utility and update layout structure

[nolannbiron]

Eliminated the .scroll-nojump utility and related CSS from globals.css and refactored layout components (Header, Footer, AnnouncementBanner, SpaceLayout) to remove unnecessary wrapper divs. Updated scrollbar styling to use native CSS properties for improved consistency and maintainability.

[changeset-bot]

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Latest commit: 0fdb841

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[github-actions]

Summary of the deployments:

Version	URL	Status
Vercel	https://gitbook-v2-qiolzw5l6-gitbook.vercel.app	✅
Cloudflare	https://fa2b5abe-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	2v	2c
GitBook	https://gitbook-v2-qiolzw5l6-gitbook.vercel.app/url/gitbook.com/docs	https://fa2b5abe-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://gitbook-v2-qiolzw5l6-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://fa2b5abe-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

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Build	Status	Details	Updated (UTC)
customers-v2 (Inspect)	⚠️ Changes detected (Review)	168 changed	Jul 25, 2025, 7:23 AM
v2-cloudflare (Inspect)	⚠️ Changes detected (Review)	685 changed	Jul 25, 2025, 7:28 AM
v2-vercel (Inspect)	⚠️ Changes detected (Review)	693 changed	Jul 25, 2025, 7:27 AM