Change the default value of the Stack's align prop from start to stretch

[sungik-choi]

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Related Issue

Fixes #996

Summary

Stack 의 align prop의 기본값을 start 에서 stretch 로 변경합니다.

Details

#996 참고. CSS Flexible Box Layout Module Level 1의 스펙에 따르면, align-items 속성의 기본값은 stretch 입니다. 라이브러리를 사용하는 엔지니어들이 의도한대로 컴포넌트가 동작할 수 있도록, 기본값을 표준에 맞게 변경했습니다.

Breaking change or not (Yes/No)

Yes

애플리케이션에서 대부분은 stretch 로 설정되어있으나, 기본값을 사용하고 있는 사용처가 몇 있어 마이그레이션이 필요합니다.

References

• CSS Flexible Box Layout Module Level 1

[changeset-bot]

🦋 Changeset detected

Latest commit: b05422b

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	Minor
bezier-figma-plugin	Patch

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[codecov]

Codecov Report

Base: 71.15% // Head: 71.15% // No change to project coverage 👍

Coverage data is based on head (b05422b) compared to base (80f3358).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff            @@
##           next-v1    #1030   +/-   ##
========================================
  Coverage    71.15%   71.15%           
========================================
  Files          208      208           
  Lines         2961     2961           
  Branches       821      821           
========================================
  Hits          2107     2107           
  Misses         736      736           
  Partials       118      118           

Impacted Files	Coverage Δ
.../bezier-react/src/components/Stack/Stack/Stack.tsx	100.00% <100.00%> (ø)

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