Do not try to batch updates in React >= 18

[12joan]

Description
Checks if React.version is < 18 before calling unstable_batchedUpdates in with-react.ts.

Context
Updates are batched automatically in React >= 18. Calling unstable_batchedUpdates in React 18 produces an error in some circumstances:

[1] - error unhandledRejection: Error [TypeError]: ReactDOM__default.default.unstable_batchedUpdates is not a function
[1]     at e.onChange (webpack-internal:///(sc_client)/../../node_modules/slate-react/dist/index.js:5747:34)
[1]     at eval (webpack-internal:///(sc_client)/../../node_modules/slate/dist/index.js:3006:14) {
[1]   digest: undefined
[1] }

Environment
The above error was observed in the following environment:

react 18.2.0
react-dom 18.2.0
slate 0.94.1
slate-react 0.97.0

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.)
• The relevant examples still work. (Run examples with yarn start.)
• You've added a changeset if changing functionality. (Add one with yarn changeset add.)

[changeset-bot]

🦋 Changeset detected

Latest commit: 8da6899

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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