fix: update privacy policy URL handling logic

[xionglinlin]

1. Restructured privacy policy URL generation to handle community and commercial versions separately
2. Simplified URL construction by removing region suffix for community version
3. Added direct Chinese/English URLs for community version (deepin.org)
4. Maintained existing region-based URLs for commercial version (uniontech.com)
5. Improved code readability by removing redundant static lists and simplifying conditionals

The changes ensure proper privacy policy links are generated for different system types and regions, while making the code more maintainable and consistent with the actual privacy policy documentation locations.

fix: 更新隐私政策URL处理逻辑

1. 重构隐私政策URL生成逻辑，区分社区版和商业版处理
2. 简化社区版URL构造，不再使用区域后缀
3. 为社区版添加直接的中文/英文URL（deepin.org）
4. 商业版保持原有的基于区域的URL（uniontech.com）
5. 通过移除冗余静态列表和简化条件判断提高代码可读性

这些修改确保为不同系统类型和区域生成正确的隐私政策链接，同时使代码更易于
维护并与实际隐私政策文档位置保持一致。

pms: Bug-317131

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• qCWarning 更改为 qCDebug 可能会影响日志记录的严重性级别，需要确认是否为预期行为。
• QString addr; 变量声明后未初始化，可能导致未定义行为。
• QString communityRegion = "en"; 初始化后未使用，应移除或使用。
• QStringList chineseRegion = { "cn", "hk", "tw" }; 列表中的 "ti" 和 "uy" 可能是拼写错误或未使用的区域代码。
• addr 变量在 DCC_NAMESPACE::IsCommunitySystem 条件下被重新赋值，但未在 else 分支中赋值，可能导致空指针异常。
• QString link = QString("<a style=\"text-decoration: none\" href=\"%1\">%2</a>").arg(addr).arg(tr("Privacy Policy")); 中 addr 的拼接方式可能需要调整，以确保 URL 格式正确。

是否建议立即修改:
是

[deepin-ci-robot]

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This pull-request has been approved by: mhduiy, xionglinlin

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