feat: Refactor global event handling in ArtPlayer

- Introduced a new globalInit function to manage document and window events.
- Replaced direct event proxies with a unified bindGlobalEvents method.
- Updated event handling in various modules to utilize the new global event system.
- Removed the deprecated documentInit module.
- Bumped version to 5.2.6 in package.json.

packages/artplayer/types/artplayer.d.ts

@@ -118,6 +118,7 @@ export default class Artplayer extends Player {
     ) => () => void
     hover: (element: HTMLElement, mouseenter?: (event: Event) => any, mouseleave?: (event: Event) => any) => void
     remove: (event: Event) => void
+    bindGlobalEvents: (source?: { window?: Window, document?: Document }) => void
   }
 
   readonly storage: {