fix(card): keep resolver output blank when lyrics missing

entry/src/main/ets/common/player/MusicCardSnapshot.ets

@@ -78,8 +78,8 @@ export function resolveMusicCardLyricLines(
   const trimmedText = lyricText ? lyricText.trim() : ''
   if (trimmedText === '') {
     return {
-      line1: MUSIC_CARD_EMPTY_TITLE,
-      line2: MUSIC_CARD_EMPTY_ARTIST,
+      line1: '',
+      line2: '',
       hasLyric: false
     }
   }