Aspect ratio (#534)

* update

* update

* Create video2.mp4

* add art.quality

* fix art.theme

packages/artplayer/src/style/aspectRatio.less

@@ -1,8 +1,10 @@
 .art-video-player {
     &[data-aspect-ratio] {
-        video {
-            box-sizing: content-box;
+        overflow: hidden;
+        .art-video {
             object-fit: fill;
+            box-sizing: content-box;
+            transition: all var(--art-transition-duration) ease;
         }
     }
 }

packages/artplayer/src/style/fullscreenWeb.less

@@ -1,4 +1,6 @@
 .art-fullscreen-web {
     .art-fullscreen();
     .art-full(var(--art-fullscreen-web-index), fixed);
+    width: 100% !important;
+    height: 100% !important;
 }

packages/artplayer/src/style/selector.less

@@ -20,6 +20,7 @@
 
         .art-selector-item {
             .art-center();
+            width: 100%;
             padding: 10px 15px;
             flex-shrink: 0;
             line-height: 1;