Merge branch 'fix/crash' into 'main'

fix removeChild crash

See merge request mycard/Neos!314

src/ui/Shared/Background/index.tsx

@@ -22,7 +22,10 @@ export const withPortalToBody = <P extends object>(
       return () => {
         // 卸载组件并且移除容器
         setTimeout(() => root.unmount());
-        portalRoot.removeChild(newNode);
+        if (portalRoot.contains(newNode)) {
+          // 做个if判断，防止下面这行crash
+          portalRoot.removeChild(newNode);
+        }
       };
     }, []);