新增播放速率调整功能

src/common/types/app_setting.d.ts

@@ -108,6 +108,11 @@ declare global {
        */
       'player.isMute': boolean
 
+      /**
+       * 播放速率
+       */
+      'player.playbackRate': number
+
       /**
        * 音频输出设备id
        */

src/common/types/desktop_lyric.d.ts

@@ -62,6 +62,7 @@ declare namespace LX {
     | LyricAction<'set_status', {
       isPlay: boolean
       line: number
+      rate: number
       played_time: number
     }>
     | LyricAction<'set_lyric', {
@@ -71,6 +72,7 @@ declare namespace LX {
       lxlrc: string | null
     }>
     | LyricAction<'set_offset', number>
+    | LyricAction<'set_playbackRate', number>
     | LyricAction<'set_play', number>
     | LyricAction<'set_pause'>
     | LyricAction<'set_stop'>