add autoHeight option

docs/assets/css/mobile.css

@@ -10,7 +10,6 @@ html, body {
 
 .artplayer-app {
     width: 100%;
-    height: 50%;
 }
 
 .tip {

docs/assets/js/mobile.js

@@ -6,6 +6,7 @@ var art = new Artplayer({
     title: 'One More Time One More Chance',
     poster: '/assets/sample/poster.jpg',
     autoSize: true,
+    autoHeight: true,
     loop: true,
     mutex: true,
     theme: '#ffad00',

docs/assets/ts/artplayer.d.ts

@@ -212,6 +212,11 @@ type Option = {
      */
     autoMini?: boolean;
 
+    /**
+     * Set the container height based on the video length aspect ratio and the container width
+     */
+    autoHeight?: boolean;
+
     /**
      * Whether video auto loop
      */