fix(kit): add submitter type to SubmitFunction input argument

[igneosaur]

Fixes #9483

This PR adds an additional submitter typing to the duplicate of SubmitFunction in kit/types/index.d.ts. The main feature was added here.

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🦋 Changeset detected

Latest commit: eec41fd

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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[dummdidumm]

Thank you! Could you add a changeset? Then we can merge this.