fix: HTML table fails to import with empty cells

server/utils/turndown/utils.ts

@@ -0,0 +1,13 @@
+export function inHtmlContext(node: HTMLElement, selector: string) {
+  let currentNode = node;
+  // start at the closest element
+  while (currentNode !== null && currentNode.nodeType !== 1) {
+    currentNode = (currentNode.parentElement ||
+      currentNode.parentNode) as HTMLElement;
+  }
+  return (
+    currentNode !== null &&
+    currentNode.nodeType === 1 &&
+    currentNode.closest(selector) !== null
+  );
+}