feat: 支持讲解详情页粤语语音切换

src/view-models/explainViewModels.ts

@@ -137,6 +137,7 @@ const formatDuration = (duration?: number) => (
 
 const languageLabelFor = (language?: string) => {
   if (language === 'en-US') return '英文'
+  if (language === 'yue-HK') return '粤语'
   if (language === 'zh-CN') return '中文'
   return language || undefined
 }