fix: fix onCompositionEnd update error

[qirong77]

Description
When user is compositing, The code-block updating is not work correctly.

Context
The onEompositionEnd Event will trigger two react update，one is setIsComposing(false) and anthor is Editor.insertText(editor, event.data)，Editor.insertText(editor, event.data) should update first or it will cause update error（selection is not update) that in slate/packages/slate-react/src/components/element.tsx MemoizedElement。
So I use Promise to delay setIsComposing(false) and exec Editor.insertText(editor, event.data) first to make it resolve selection correctly when onEompositionEnd is triggered.

const MemoizedElement = React.memo(Element, (prev, next) => {
  return (
    prev.element === next.element &&
    prev.renderElement === next.renderElement &&
    prev.renderLeaf === next.renderLeaf &&
    prev.renderPlaceholder === next.renderPlaceholder &&
    isElementDecorationsEqual(prev.decorations, next.decorations) &&
// The selection is not update correctly when onEompositionEnd is triggered
    (prev.selection === next.selection ||
      (!!prev.selection &&
        !!next.selection &&
        Range.equals(prev.selection, next.selection)))
  )
})

The Right

Here is the right update when user composition end

[changeset-bot]

🦋 Changeset detected

Latest commit: 44f6d60

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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[dylans]

Thanks for the PR.

This needs a changeset to support our contributor workflow.

Ideally, if reasonable, please add a test for this change (we're slowly trying to add tests for slate-react).

[qirong77]

Thanks for the PR.

This needs a changeset to support our contributor workflow.

Ideally, if reasonable, please add a test for this change (we're slowly trying to add tests for slate-react).

Thanks for review. I have add a changeset now.
I would like to do complete a test for this change but I'm sorry that I am not familiar with writing test , this is beyond my ability😂.

[dylans]

Ok, we'll accept and release this, but if it does raise regressions then we'll roll it back.

[daddybh]

2023-12-11.10.43.10.mov

this MR will rising another issue, which the caret will jump to the start.

[eagowang]

https://github.com/ianstormtaylor/slate/assets/33490722/dee594c8-4514-4e89-803b-7594b5fb4988
t

2023-12-11.10.43.10.mov
this MR will rising another issue, which the caret will jump to the start.

Same here，the caret will jump to last position

2023-12-16.11.34.42.mov

[sennpang]

packages\slate-react\src\components\editable.tsx
onCompositionEnd add this solved the problem

[yunwuxin]

@dylans Please review this PR again.