fix: Result should hide icon when it is falsy

[afc163]

[中文版模板 / Chinese template]

🤔 This is a ...

• New feature
• Bug fix
• Site / documentation update
• Demo update
• Component style update
• TypeScript definition update
• Bundle size optimization
• Performance optimization
• Enhancement feature
• Internationalization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

close #38484

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Result should hide icon when it is falsy.
🇨🇳 Chinese	修复 Result icon 为 null 时图标没有隐藏的问题。

☑️ Self-Check before Merge

⚠️ Please check all items below before requesting a reviewing. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

[github-actions]

Codeball: LGTM! 👍

confidence: 1.00 | [dashboard]

[github-actions]

[github-actions]

Codeball: LGTM! 👍

confidence: 1.00 | [dashboard]

[github-actions]

Codeball: LGTM! 👍

confidence: 1.00 | [dashboard]

[github-actions]

Size Change: +15 B (0%)

Total Size: 963 kB

Filename	Size	Change
./dist/antd-with-locales.min.js	374 kB	+8 B (0%)
./dist/antd.min.js	317 kB	+7 B (0%)

ℹ️ View Unchanged

Filename	Size
./dist/antd.compact.min.css	67.7 kB
./dist/antd.dark.min.css	69 kB
./dist/antd.min.css	67.6 kB
./dist/antd.variable.min.css	68.3 kB

_{compressed-size-action}

[codecov]

Codecov Report

Base: 99.98% // Head: 100.00% // Increases project coverage by +0.01% 🎉

Coverage data is based on head (b588bce) compared to base (8af0b4f).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #38488      +/-   ##
===========================================
+ Coverage   99.98%   100.00%   +0.01%     
===========================================
  Files         447       447              
  Lines        8312      8314       +2     
  Branches     2530      2531       +1     
===========================================
+ Hits         8311      8314       +3     
+ Misses          1         0       -1     

Impacted Files	Coverage Δ
components/result/index.tsx	100.00% <100.00%> (ø)
components/tooltip/index.tsx	100.00% <0.00%> (+1.03%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.