site: fix homepage features in dark mode

[thinkasany]

[中文版模板 / Chinese template]

💡 Background and solution

before:

after:

🔗 Related issue link

close #1165

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⚠️ No Changeset found

Latest commit: 1b1f367bd1fd15213c487a0149ae78dc81d16cde

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Name	Status	Preview	Comments	Updated (UTC)
ant-design-web3	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 18, 2024 1:35pm

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.99%. Comparing base (5875695) to head (1b1f367). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1168 +/- ## ======================================= Coverage 99.99% 99.99% ======================================= Files 846 846 Lines 18056 18056 Branches 1575 1575 ======================================= Hits 18055 18055 Misses 1 1 ```

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