fix block strategy

If an element was blocked, its child nodes should also be blocked.
The interactions and mutations on the element and its child nodes
also need to be blocked.

src/utils.ts

@@ -112,3 +112,17 @@ export function getWindowWidth(): number {
     (document.body && document.body.clientWidth)
   );
 }
+
+const BLOCK_CLASS = 'rr-block';
+export function isBlocked(node: Node | null): boolean {
+  if (!node) {
+    return false;
+  }
+  if (node.nodeType === node.ELEMENT_NODE) {
+    return (
+      (node as HTMLElement).classList.contains(BLOCK_CLASS) ||
+      isBlocked(node.parentNode)
+    );
+  }
+  return isBlocked(node.parentNode);
+}