Fix missing title for button to close announcement banner

[SamyPesse]

No description provided.

[changeset-bot]

🦋 Changeset detected

Latest commit: 0b9f0da

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
gitbook	Patch

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[github-actions]

Summary of the deployments:

Version 1

Version	URL	Status
Latest commit	https://cdcff14f.gitbook-open.pages.dev	✅
PR	https://pr3279.gitbook-open.pages.dev	✅

Version 2

Version	URL	Status
Vercel	https://gitbook-v2-df5c5jfmb-gitbook.vercel.app	✅
Cloudflare	https://cab87c0e-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	v1	2v	2c
GitBook	https://cdcff14f.gitbook-open.pages.dev/gitbook.com/docs	https://gitbook-v2-df5c5jfmb-gitbook.vercel.app/url/gitbook.com/docs	https://cab87c0e-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://cdcff14f.gitbook-open.pages.dev/gitbook.gitbook.io/test-gitbook-open	https://gitbook-v2-df5c5jfmb-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://cab87c0e-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

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Build	Status	Details	Updated (UTC)
customers-v1 (Inspect)	✅ No changes detected	-	Jun 4, 2025, 3:26 PM
customers-v2 (Inspect)	👍 Changes approved	79 changed	Jun 4, 2025, 3:29 PM
default (Inspect)	✅ No changes detected	-	Jun 4, 2025, 3:30 PM
v2-cloudflare (Inspect)	✅ No changes detected	-	Jun 4, 2025, 3:31 PM
v2-vercel (Inspect)	✅ No changes detected	-	Jun 4, 2025, 3:32 PM