fix: fix CC Switch model selector

[seefs001]

⚠️ 提交说明 / PR Notice

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• 请提供人工撰写的简洁摘要，避免直接粘贴未经整理的 AI 输出。

📝 变更描述 / Description

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修复codex/gemini导入cc switch看不到下拉模型列表数据的样式问题。
修正cc switch i18n

🚀 变更类型 / Type of change

• 🐛 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
• ✨ 新功能 (New feature) - 重大特性建议先通过 Issue 沟通
• ⚡ 性能优化 / 重构 (Refactor)
• 📝 文档更新 (Documentation)

🔗 关联任务 / Related Issue

• Closes 新版UI密钥cc切换，选择codex，主模型无法选择，手动填写模型名无效 #5501

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Summary by CodeRabbit

• Style

  • Adjusted dialog layout spacing for the CC Switch feature based on app configuration.

• Chores

  • Updated "CC Switch" translations across French, Japanese, Russian, Vietnamese, and Chinese locales.

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

Walkthrough

CCSwitchDialog gains a conditional bodyClassName that adds pb-52 bottom padding when the selected app's modelFields array has exactly one entry, fixing a dropdown occlusion issue. Separately, the "CC Switch" translation value is reverted to the English string "CC Switch" across French, Japanese, Russian, Vietnamese, and Chinese locale files.

Changes

CCSwitchDialog Layout Fix and i18n Normalization

Layer / File(s)	Summary
Conditional bodyClassName padding web/default/src/features/keys/components/dialogs/cc-switch-dialog.tsx	bodyClassName is now a conditional expression: adds pb-52 when the selected app has exactly one modelField, otherwise keeps space-y-4, fixing dropdown occlusion for single-field apps like Codex.
CC Switch label normalized to English web/default/src/i18n/locales/fr.json, web/default/src/i18n/locales/ja.json, web/default/src/i18n/locales/ru.json, web/default/src/i18n/locales/vi.json, web/default/src/i18n/locales/zh.json	The "CC Switch" translation value is set to the untranslated string "CC Switch" in all five locale files, replacing French, Japanese, Russian, Vietnamese, and Chinese translations.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• QuantumNous/new-api#5346: Refactored cc-switch-dialog.tsx to use a shared prop-driven Dialog layout, which is the direct predecessor to the conditional bodyClassName change introduced in this PR.

Poem

🐇 Hop hop, the dropdown was lost from view,
Tucked under the field where no rabbit could see,
A sprinkle of pb-52 and it popped into view,
CC Switch stays "CC Switch" — consistent and free,
Five locales now speak the same English refrain,
The bunny fixed padding and i18n in one lane! 🎉

🚥 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 'fix: fix CC Switch model selector' directly addresses the main issue from #5501 about the non-functional model selector in CC Switch, which is the primary change in this PR.
Linked Issues check	✅ Passed	The PR fixes the CC Switch model selector styling issue (#5501) by adding conditional bottom padding when modelFields has one field, allowing the dropdown to display properly for Codex/Gemini models.
Out of Scope Changes check	✅ Passed	All changes are in-scope: the main fix addresses the model selector dropdown display issue, while i18n updates align with the CC Switch feature correction mentioned in PR objectives.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

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