feat: Improve fullscreen functionality in mobile.html and fullscreenMix.js

docs/uncompiled/artplayer/index.js

@@ -1880,6 +1880,7 @@ function fullscreenMix(art) {
                 return $video.webkitDisplayingFullscreen;
             },
             set (value) {
+                console.log("set", value);
                 if (value) {
                     art.state = "fullscreen";
                     $video.webkitEnterFullscreen();