修复迷你播放器的坐标错误

packages/artplayer/src/style/pip.scss

@@ -38,8 +38,6 @@
     &.artplayer-pip {
         position: fixed;
         z-index: 9999;
-        right: 20px;
-        bottom: 20px;
         width: 400px;
         height: 225px;
         box-shadow: 0 2px 5px 0 rgba(0,0,0,0.16), 0 3px 6px 0 rgba(0,0,0,0.20);