[fix] Lazy load Svelte components to reenable no-ssr use cases

[dummdidumm]

Fixes #5909

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🦋 Changeset detected

Latest commit: ab1e880

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

This PR includes changesets to release 1 package

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@sveltejs/kit	Patch

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[benmccann]

this is kind of a confusing way to write the comment. maybe something like this?

Suggested change

	// String representation of
	/** @type {import('types').SSRNode} */
	// String representation of types.SSRNode

[dummdidumm]

I specifically wrote it like this so that you can do "find usages" on the type and it takes you to this place. This would have been helpful to me to find the correct places I need to change quicker.

[dummdidumm]

I feared this would happen - this CSS tests are failing, I guess because they are no longer eagerly imported so it's a FOUC in some cases.