fix: fix Selct, Cascader suffix icon style error

[YyumeiZhang]

中文模板 / Chinese Template

• I have read and followed Pull Request Guidelines of the contributing guide.

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Test Case
• TypeScript definition update
• Document improve
• CI/CD improve
• Branch sync
• Other, please describe:

PR description

Fixes #
修改后：依次为 Cascader，TreeSelect，Select

Changelog

🇨🇳 Chinese

• Fix: 修复 Cascader 在有 suffix 并设置了 showClear 的情况下，清除图标位置和清除图标位置不同问题
• Style: 修改 Select 在设置 suffix 情况下，后缀和下拉图标的位置关系未与 TreeSelect/Cascader 保持一致问题（如有其他位置需求，可通过设置 flex 的 order 属性自行调整位置）

---

🇺🇸 English

• Fix: Fixed the problem that when Cascader has suffix and showClear is set, the position of the clear icon and the position of the clear icon are different.
• Style: Modify the problem that when suffix is ​​set in Select, the positional relationship between the suffix and the drop-down icon is not consistent with TreeSelect/Cascader. ((If you have other position requirements, you can adjust the position by setting the order attribute of flex))

Checklist

• Test or no need
• Document or no need
• Changelog or no need

Other

• Skip Changelog

Additional information

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit b5454b4:

Sandbox	Source
pr-story	Configuration

[cypress]

semi-design    Run #2809

Run Properties:   Passed #2809  •  f6ee54ff38 ℹ️: Merge b5454b418a19b1a40cbfd5d1cb21006069d8775d into d93b90a805302800ce6924e32ebc...

Project	semi-design
Branch Review	fix/suffix
Run status	Passed #2809
Run duration	09m 09s
Commit	f6ee54ff38 ℹ️: Merge b5454b418a19b1a40cbfd5d1cb21006069d8775d into d93b90a805302800ce6924e32ebc...
Committer	YyumeiZhang
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	11
Skipped	0
Passing	263
⚠️ You've recorded test results over your free plan limit. Upgrade your plan to view test results.
View all changes introduced in this branch ↗︎

[cypress]

semi-design    Run #2814

Run Properties:   Passed #2814  •  edc172dda8: fix: fix Selct, Cascader suffix icon style error (#2493)

Project	semi-design
Branch Review	main
Run status	Passed #2814
Run duration	07m 38s
Commit	edc172dda8: fix: fix Selct, Cascader suffix icon style error (#2493)
Committer	YyumeiZhang
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	11
Skipped	0
Passing	263
⚠️ You've recorded test results over your free plan limit. Upgrade your plan to view test results.
View all changes introduced in this branch ↗︎