fix: fix ConnectModal style issue in dark mode

[kiner-tang]

[中文版模板 / Chinese template]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 349ae02

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

This PR includes changesets to release 3 packages

Name	Type
@ant-design/web3	Patch
@example/ethers-v5	Patch
@example/ethers	Patch

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Name	Status	Preview	Comments	Updated (UTC)
ant-design-web3	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 9, 2024 8:13am

[github-actions]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (dfef374) to head (349ae02).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #781   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          649       649           
  Lines        19694     19721   +27     
  Branches      1123      1121    -2     
=========================================
+ Hits         19694     19721   +27     

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