Remove trailing slash from linker

[conico974]

While joining paths, the GitBookLinker will sometimes add a trailing slash (or not remove it)

This will cause unnecessary redirect in GBO v2

[changeset-bot]

🦋 Changeset detected

Latest commit: 93ccaa0

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

This PR includes changesets to release 1 package

Name	Type
gitbook-v2	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[linear]

RND-7147 Remove trailing slash in the header logo URL

[github-actions]

Summary of the deployments:

Version 1

Version	URL	Status
Latest commit	https://ee24b6c1.gitbook-open.pages.dev	✅
PR	https://pr3268.gitbook-open.pages.dev	✅

Version 2

Version	URL	Status
Vercel	https://gitbook-v2-jw9w5kjn6-gitbook.vercel.app	✅
Cloudflare	https://6dcb0a50-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	v1	2v	2c
GitBook	https://ee24b6c1.gitbook-open.pages.dev/gitbook.com/docs	https://gitbook-v2-jw9w5kjn6-gitbook.vercel.app/url/gitbook.com/docs	https://6dcb0a50-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://ee24b6c1.gitbook-open.pages.dev/gitbook.gitbook.io/test-gitbook-open	https://gitbook-v2-jw9w5kjn6-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://6dcb0a50-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

[argos-ci]

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Build	Status	Details	Updated (UTC)
customers-v1 (Inspect)	✅ No changes detected	-	May 27, 2025, 4:37 PM
customers-v2 (Inspect)	👍 Changes approved	80 changed	May 27, 2025, 4:39 PM
default (Inspect)	✅ No changes detected	-	May 27, 2025, 4:40 PM
v2-cloudflare (Inspect)	✅ No changes detected	-	May 27, 2025, 4:42 PM
v2-vercel (Inspect)	✅ No changes detected	-	May 27, 2025, 4:41 PM