fix: update remarkStringify config (#841)

* fix: update `remarkStringify` config

* Updated unit tests

---------

Co-authored-by: Matthew Lipski <[email protected]>

Author: zaaakher

packages/core/src/api/exporters/markdown/__snapshots__/lists/basic/markdown.md

@@ -4,5 +4,5 @@
 1.  Numbered List Item 1
 2.  Numbered List Item 2
 
-*   \[ ] Check List Item 1
-*   \[x] Check List Item 2
+*   [ ] Check List Item 1
+*   [x] Check List Item 2

packages/core/src/api/exporters/markdown/__snapshots__/lists/nested/markdown.md

@@ -6,5 +6,5 @@
 
     2.  Numbered List Item 2
 
-        *   \[ ] Check List Item 1
-        *   \[x] Check List Item 2
+        *   [ ] Check List Item 1
+        *   [x] Check List Item 2

packages/core/src/api/exporters/markdown/markdownExporter.ts

@@ -18,7 +18,7 @@ export function cleanHTMLToMarkdown(cleanHTMLString: string) {
     .use(addSpacesToCheckboxes)
     .use(rehypeRemark)
     .use(remarkGfm)
-    .use(remarkStringify)
+    .use(remarkStringify, { handlers: { text: (node) => node.value } })
     .processSync(cleanHTMLString);
 
   return markdownString.value as string;