Update fullscreen.less and package.json

packages/artplayer/src/style/fullscreen.less

@@ -1,4 +1,6 @@
 .art-fullscreen {
+    --art-progress-height: 8px;
+    --art-indicator-size: 20px;
     --art-control-height: 60px;
     --art-control-icon-scale: 1.3;
 }