fix(transformer): find last modified date form commit on submodule (#1831)

dralagen

2025-03-19 bcde2abcb20ad02a0c3f1430b9d620ee60e6cb63

 docs/features/breadcrumbs.md

@@ -20,6 +20,7 @@
  rootName: "Home", // name of first/root element
  resolveFrontmatterTitle: true, // whether to resolve folder names through frontmatter titles
  hideOnRoot: true, // whether to hide breadcrumbs on root `index.md` page
  showCurrentPage: true, // whether to display the current page in the breadcrumbs
})
```