Deprecate internal use modules (#1963)

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## Self Checklist

- [x] I wrote a PR title in **English** and added an appropriate
**label** to the PR.
- [x] I wrote the commit message in **English** and to follow [**the
Conventional Commits
specification**](https://www.conventionalcommits.org/en/v1.0.0/).
- [x] I [added the
**changeset**](https://github.com/changesets/changesets/blob/main/docs/adding-a-changeset.md)
about the changes that needed to be released. (or didn't have to)
- [x] I wrote or updated **documentation** related to the changes. (or
didn't have to)
- [x] I wrote or updated **tests** related to the changes. (or didn't
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  - Windows: Chrome, Edge, (Optional) Firefox
  - macOS: Chrome, Edge, Safari, (Optional) Firefox

## Related Issue
<!-- Please link to issue if one exists -->

- Fixes #1798

## Summary
<!-- Please brief explanation of the changes made -->

Deprecate internal use modules

## Details
<!-- Please elaborate description of the changes -->

from
[1926041](1926041)

### Breaking change? (Yes/No)
<!-- If Yes, please describe the impact and migration path for users -->

Yes

.changeset/long-birds-attend.md

@@ -0,0 +1,10 @@
+---
+"@channel.io/bezier-react": major
+---
+
+**Breaking Changes: Deprecated modules for internal use**
+
+- No longer provides `useEventHandler` and `useMergeRefs` hook.
+- No longer provides `useId` hook. Use `useId` hook of `react` instead.
+- No longer provides `getRootElement` hook. Use `useWindow` hook instead.
+- No longer provides `StyleUtils` and `StringUtils` utils.

packages/bezier-react/src/index.ts

@@ -57,15 +57,6 @@ export * from '~/src/components/LegacyStack'
 export * from '~/src/components/LegacyTooltip'
 
 export * from '~/src/types/ComponentProps'
-export * from '~/src/types/Utils'
 export * from '~/src/types/Token'
 
-export { default as useEventHandler } from '~/src/hooks/useEventHandler'
-export { default as useMergeRefs } from '~/src/hooks/useMergeRefs'
-export { default as useId } from '~/src/hooks/useId'
-
-export { getRootElement } from '~/src/utils/dom'
-export * as StyleUtils from '~/src/utils/style'
-export * as StringUtils from '~/src/utils/string'
-
 export * from '~/src/features'