fix: respect theme for multiselect combobox popover

[yyhhyyyyyy]

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修复 MultiSelect 下拉浮层在浅色主题下被强制显示为暗色的问题。

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• 🐛 Bug 修复 (Bug fix) - 请关联对应 Issue，避免将设计取舍、理解偏差或预期不一致直接归类为 bug
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• ⚡ 性能优化 / 重构 (Refactor)
• 📝 文档更新 (Documentation)

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Summary by CodeRabbit

• Style
  • Enhanced combobox component styling to improve visual consistency and rendering across different display modes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: da86da08-6410-4e31-98b8-937c3c26a4d4

📥 Commits

Reviewing files that changed from the base of the PR and between 3280584 and c8d3768.

📒 Files selected for processing (1)

• web/default/src/components/ui/combobox.tsx

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Walkthrough

The ComboboxContent component's ComboboxPrimitive.Popup className is updated: the dark prefix is removed from the group/combobox-content styling token, replacing the conditional dark mode class with an unconditional version.

Changes

Combobox popup styling update

Layer / File(s)	Summary
Remove dark prefix from combobox popup class web/default/src/components/ui/combobox.tsx	The CSS class token in ComboboxPrimitive.Popup is updated from dark group/combobox-content to group/combobox-content on line 183.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A single class did dance away,
Dark prefix vanished in a day,
The combobox now stands so bright,
With styling plain, no dark-prefixed might!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly reflects the main change: removing dark theme prefixing from the combobox popover styling to allow theme inheritance, aligning with the PR's objective to fix theme respecting.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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