feat: add liquid-glass plugin for ArtPlayer with documentation and styles

docs/index.html

@@ -116,6 +116,10 @@
                         <li>
                             <a href="/?libs=./uncompiled/artplayer-plugin-document-pip/index.js&example=document.pip">artplayer-plugin-document-pip</a>
                         </li>
+                        <li>
+                            <a
+                                href="/?libs=./uncompiled/artplayer-plugin-liquid-glass/index.js&example=liquid.glass">artplayer-plugin-liquid-glass</a>
+                        </li>
                     </ul>
                     <ul>
                         <li class="title">Proxys</li>