chore: update to SvelteKit 2

[huntabyte]

Update the documentation to SvelteKit 2.

Before submitting the PR, please make sure you do the following

• If your PR isn't addressing a small fix (like a typo), it references an issue where it is discussed ahead of time and assigned to you. In many cases, features are absent for a reason.
• Prefix your PR title with feat:, fix:, chore:, or docs:.
• This message body should clearly illustrate what problems it solves.
• Format & lint the code with pnpm format and pnpm lint

Todo:

• update @unovis/svelte once they fix their issues

[changeset-bot]

🦋 Changeset detected

Latest commit: 8052674

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

This PR includes changesets to release 1 package

Name	Type
shadcn-svelte	Patch

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[huntabyte]

This can't be merged until f5/unovis#343 is resolved

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[AdrianGonz97]

LGTM - ship it