Add floating-alt style variant in Button element

[guswnsxodlf]

Self Checklist

• I wrote a PR title in English.
• I added an appropriate label to the PR.
• I wrote a commit message in English.
• I wrote a commit message according to the Conventional Commits specification.
• I added the appropriate changeset for the changes.
• I wrote a unit test about the implementation.
• I wrote a storybook document about the implementation.
• I tested the implementation in various browsers.
  • Windows: Chrome, Edge, (Optional) Firefox
  • macOS: Chrome, Edge, Safari, (Optional) Firefox

Related Issue

Fixes #0000

Summary

This PR adds a floating-alt style variant in Button element.

Details

Breaking change or not (Yes/No)

No

[changeset-bot]

🦋 Changeset detected

Latest commit: ad4a873

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

This PR includes changesets to release 2 packages

Name	Type
@channel.io/bezier-react	Patch
bezier-figma-plugin	Patch

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[codecov]

Codecov Report

Merging #907 (ad4a873) into next-v1 (545a18c) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           next-v1     #907      +/-   ##
===========================================
+ Coverage    69.25%   69.29%   +0.04%     
===========================================
  Files          203      203              
  Lines         2859     2863       +4     
  Branches       792      792              
===========================================
+ Hits          1980     1984       +4     
  Misses         767      767              
  Partials       112      112              

Impacted Files	Coverage Δ
...ezier-react/src/components/Button/Button.styled.ts	92.64% <100.00%> (+0.45%)	⬆️

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[github-actions]

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[sungik-choi]

PR Checklist의 add changeset도 확인 부탁드립니다!

[inhibitor1217]

Documentation - API section에 수정사항 반영해주세요.