Fix: title key can't exist inside title, rich_text should be the key

Author: harsh26shah03

packages/notion-compat/src/convert-block.ts

@@ -227,7 +227,7 @@ export function convertBlock({
         if (page) {
           if (page.properties.title) {
             compatBlock.properties.title = convertRichText(
-              (page.properties.title as any).title
+              (page.properties.title as any).rich_text
             )
           }