fix(Layout): can't collapse side when set side with value

[SamXMG]

can't collapse side when set side with value

close #3981

[bb-auto]

Thanks for your PR, @SamXMG. Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[CLAassistant]

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1 out of 2 committers have signed the CLA.

✅ ArgoZhang
❌ SamXMG

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[ArgoZhang]

@SamXMG 感谢提交 PR 签署一下 CLA

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (e2c60b7) to head (87c4b7c).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #3977   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          593       593           
  Lines        25820     25820           
  Branches      3756      3756           
=========================================
  Hits         25820     25820           

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