Implement a function identicalDomTrees(node1, node2) that determines whether two DOM trees are identical.

The function should:

• Compare the tag names of nodes.
• Compare text content if nodes are text nodes.
• Compare children recursively in order.
• Return true if the entire structures are the same, otherwise false.

Example

const doc1 = new DOMParser().parseFromString(
  '<div><span>Hi</span><p>Bye</p></div>', 'text/html'
);
const doc2 = new DOMParser().parseFromString(
  '<div><span>Hi</span><p>Bye</p></div>', 'text/html'
);
identicalDomTrees(doc1.body, doc2.body); // true

const doc3 = new DOMParser().parseFromString(
  '<div><span>Hello</span><p>Bye</p></div>', 'text/html'
);
identicalDomTrees(doc1.body, doc3.body); // false