fix: add null check for target in Control and Setting classes

- Added a null check for the target parameter in the check method of the Control class to prevent potential errors when target is undefined.
- Implemented a similar null check in the check method of the Setting class for consistency and error handling.
- Updated FULLSCREEN_WEB_IN_BODY property in Artplayer to true for enabling fullscreen mode in web environments.

packages/artplayer/src/setting/index.js

@@ -95,6 +95,9 @@ export default class Setting extends Component {
   }
 
   check(target) {
+    if (!target) {
+      return
+    }
     target.$parent.tooltip = target.html
     this.traverse((item) => {
       item.default = item === target