Addition of spanish language

packages/artplayer/src/i18n/index.js

@@ -3,7 +3,7 @@ import zhCn from './zh-cn.json';
 import zhTw from './zh-tw.json';
 import pl from './pl.json';
 import cs from './cs.json';
-
+import es from './es.json';
 export default class I18n {
     constructor(art) {
         this.art = art;
@@ -12,6 +12,7 @@ export default class I18n {
             'zh-tw': zhTw,
             'pl': pl,
             'cs': cs,
+            'es': es
         };
         this.init();
     }