优化ts

.size-snapshot.json

@@ -1,8 +1,8 @@
 {
   "packages/artplayer/dist/artplayer.js": {
-    "bundled": 180373,
-    "minified": 105418,
-    "gzipped": 24966
+    "bundled": 189438,
+    "minified": 110162,
+    "gzipped": 26060
   },
   "packages/artplayer-plugin-backlight/dist/artplayer-plugin-backlight.js": {
     "bundled": 4629,