[fix] don't log warning if root is configured

[benmccann]

root is no longer set since #5303. This logs an unnecessary warning when using Storybook

[changeset-bot]

🦋 Changeset detected

Latest commit: 4b3c0dc

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

This PR includes changesets to release 1 package

Name	Type
@sveltejs/kit	Patch

Not sure what this means? Click here to learn what changesets are.

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

[Rich-Harris]

Can you elaborate? As far as I can tell, setting root just makes everything break. What are the situations in which it makes sense to be configured?

[benmccann]

Storybook sets root to the expected directory. SvelteKit doesn't check what the value of the setting is and just prints an error if it's configured at all eventhough there's no actual issue. And SvelteKit doesn't actually set the value so the error message is also incorrect in saying that SvelteKit is taking control of it.

[Rich-Harris]

What is 'the expected directory'? I'm just very unclear on how it could work. It feels like SvelteKit probably should set the value to the project root and/or print an error if it's set to something else

[benmccann]

Storybook sets it to the project root, which is what I meant by expected directory

[Rich-Harris]

Ah. So I think what we should do is error if root is explicitly set to something other than the cwd

[benmccann]

Ok. Updated the PR to do that