修复有歌词翻译与无歌词的音乐间切换会导致歌词翻译残留显示的问题

src/renderer/components/core/Player.vue

@@ -713,6 +713,7 @@ export default {
       this.status = this.musicInfo.name = this.musicInfo.singer = ''
       this.musicInfo.songmid = null
       this.musicInfo.lrc = null
+      this.musicInfo.tlrc = null
       this.musicInfo.url = null
       this.nowPlayTime = 0
       this.maxPlayTime = 0
@@ -891,7 +892,7 @@ export default {
       })
     },
     setLyric() {
-      window.lrc.setLyric((this.setting.player.isShowLyricTransition && this.musicInfo.tlrc ? this.musicInfo.tlrc + '\n' : '') + this.musicInfo.lrc)
+      window.lrc.setLyric((this.setting.player.isShowLyricTransition && this.musicInfo.tlrc ? (this.musicInfo.tlrc + '\n') : '') + (this.musicInfo.lrc || ''))
       if (this.isPlay && (this.musicInfo.url || this.listId == 'download')) {
         window.lrc.play(audio.currentTime * 1000)
         this.handleUpdateWinLyricInfo('play', audio.currentTime * 1000)