fix: attach ui5-webcomponents event handlers before browser paint (#7218)

Fixes #7217

Author: Lukas742

packages/base/src/wrapper/withWebComponent.tsx

@@ -190,7 +190,7 @@ export const withWebComponent = <Props extends Record<string, any>, RefType = Ui
       });
     }, [Component, ...propsToApply]);
 
-    useEffect(() => {
+    useIsomorphicLayoutEffect(() => {
       setAttachEvents(true);
     }, []);