feat: Add null to several ref types

[yf-yang]

Checklist

• yarn typecheck
• yarn lint:fix
• yarn test
• yarn brl
• yarn changeset
• ui changelog

related? I cannot recall the behavior of React 18, but seems now with React 19 useRef<XXX> returns React.Ref<XXX | null> and some type checks fail

[codesandbox]

Review or Edit in CodeSandbox

Open the branch in Web Editor • VS Code • Insiders

Open Preview

[changeset-bot]

🦋 Changeset detected

Latest commit: 7ae02c9

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

This PR includes changesets to release 22 packages

Name	Type
@udecode/react-utils	Patch
@udecode/plate-selection	Patch
@udecode/plate-combobox	Patch
@udecode/plate-floating	Patch
@udecode/plate-caption	Patch
@udecode/plate-heading	Patch
@udecode/plate-cursor	Patch
@udecode/plate-emoji	Patch
@udecode/cmdk	Patch
@udecode/plate-core	Patch
@udecode/plate-dnd	Patch
@udecode/cn	Patch
@udecode/plate-common	Patch
@udecode/plate-utils	Patch
@udecode/slate-react	Patch
@udecode/plate-ai	Patch
@udecode/plate	Patch
@udecode/plate-mention	Patch
@udecode/plate-slash-command	Patch
@udecode/plate-link	Patch
@udecode/plate-basic-elements	Patch
@udecode/plate-docx	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

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
plate	❌ Failed (Inspect)			Dec 8, 2024 2:50pm

[zbeyens]

You can try to run yarn typecheck in apps/www