Use extended Editor type in useSlateWithV return type

[TyMick]

Description

The useSlateWithV return object's editor property is currently typed as just a ReactEditor, which causes type errors in our app when we try to use it as the extended Editor type. This change brings useSlateWithV's return type in line with those of useSlate and useSlateStatic.

Checks

• The new code matches the existing patterns and styles.
• The tests pass with yarn test.
• The linter passes with yarn lint. (Fix errors with yarn fix.)
• You've added a changeset if changing functionality. (Add one with yarn changeset add.)

[changeset-bot]

🦋 Changeset detected

Latest commit: 214e939

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

This PR includes changesets to release 1 package

Name	Type
slate-react	Patch

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[TyMick]

Should we add a release note that this may be a breaking type change if someone isn't defining a custom Editor type that includes ReactEditor? Probably an uncommon situation, since anyone who hasn't extended Editor with ReactEditor would already have problems with useSlate and useSlateStatic.

[dylans]

Should we add a release note that this may be a breaking type change if someone isn't defining a custom Editor type that includes ReactEditor? Probably an uncommon situation, since anyone who hasn't extended Editor with ReactEditor would already have problems with useSlate and useSlateStatic.

We could, though I think the description is probably sufficient already, so I'm going to land it.