Lexical: Made summary part of details node

To provide more control of the summary as part of details.
To support, added a way to ignore elements during import DOM, allowing
up to read summaries when parsing details without duplicate nodes
involved.

resources/js/wysiwyg/lexical/html/index.ts

@@ -217,6 +217,11 @@ function $createNodesFromDOM(
   if (transformOutput !== null) {
     postTransform = transformOutput.after;
     const transformNodes = transformOutput.node;
+
+    if (transformNodes === 'ignore') {
+      return lexicalNodes;
+    }
+
     currentLexicalNode = Array.isArray(transformNodes)
       ? transformNodes[transformNodes.length - 1]
       : transformNodes;