fix(lyric): 修复 TTML 多语言翻译

[MoYingJi]

增加 sortTTMLTranslations 函数来排序翻译（此函数包含 AI 生成部分），可能确实有些问题，但也是作为临时解决方案，应该在 AMLL 的 TTML 解析器支持多语言翻译后删除

fix #718

[gemini-code-assist]

Summary of Changes

Hello @MoYingJi, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求旨在解决 TTML 歌词多语言翻译的显示问题，通过引入一个临时的排序函数来确保中文翻译能够被正确识别和优先处理。这提高了用户在播放包含多语言 TTML 歌词时体验的一致性，直至上游解析器提供更完善的解决方案。

Highlights

• 新增 TTML 翻译排序功能: 引入了一个名为 "sortTTMLTranslations" 的新私有方法，用于在解析 TTML 内容之前对多语言翻译进行排序。此函数包含 AI 生成的部分。
• 优先处理中文翻译: "sortTTMLTranslations" 函数会根据预定义的语言顺序（如 "zh-CN", "zh-Hans", "zh-TW", "zh-Hant"）对 TTML 歌词中的翻译元素进行重新排序，确保中文翻译优先显示。
• 临时解决方案: 此功能被明确标记为临时性措施，将在 AMLL 的 TTML 解析器原生支持多语言翻译后移除。
• 集成到 TTML 解析流程: 在 "LyricManager" 中，所有调用 "parseTTML" 的地方都已更新，以先通过 "sortTTMLTranslations" 处理 TTML 内容。

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Code Review

此次更新通过增加 sortTTMLTranslations 函数，修复了 TTML 歌词多语言翻译的排序问题，这是一个有效的临时解决方案。代码逻辑清晰，通过直接操作 DOM 来重新排序翻译元素的方式也很巧妙。我的审查意见主要针对新函数 sortTTMLTranslations，提出了一些关于性能优化、代码健壮性和错误处理的建议，以使其更加可靠。