fix: serialize lexical to plain text didn't work with nested nodes

cms/src/collections/Mailings/lexical/serializeLexicalToPlainText.tsx

@@ -1,25 +1,17 @@
 import { SerializedLexicalNode } from './types'
 
-function serializeToPlainText(nodes: SerializedLexicalNode[]): string {
+export function serializeLexicalToPlainText(json: any): string {
+  return serialize(json?.root?.children ?? [])
+}
+
+function serialize(nodes: SerializedLexicalNode[]): string {
   return nodes
-    .map((node): string => {
+    .map((node) => {
       if (node.type === 'text') {
-        return node.text ?? ''
-      }
-
-      if (node.type === 'block') {
-        return ''
+        return node.text
       }
 
-      return ''
+      return serialize(node.children ?? [])
     })
-    .join('\n')
-}
-
-export function serializeLexicalToPlainText(json: any): string {
-  if (!Array.isArray(json?.root?.children)) {
-    console.error('Invalid JSON structure', json)
-    throw new Error('Invalid JSON structure')
-  }
-  return serializeToPlainText(json?.root?.children)
+    .join(' ')
 }

frontend/app/components/RichText/lexicalToPlainText.ts

@@ -19,7 +19,7 @@ function serializeToPlainText(nodes: NodeTypes[]): string {
         return ''
       }
 
-      return ''
+      return lexicalToPlainText(n.children)
     })
     .join('\n')
 }