Set route with frontmatter variable?

```html
<route lang="yaml">
name: RouteName
path: /route/path
title: Title
meta:
  requiresAuth: true
</route>
```

Route setting is ok as above, when using `vite-plugin-pages`.

So, how about using frontmatter variable to set route?

```markdown
---
name: RouteName
path: /route/path
title: Title
meta:
  requiresAuth: true
---
```