pub fn render_site_page(
page: &PageEntry,
site: &SiteConfig,
nav_items: &[(String, String)],
config: &PageConfig,
) -> StringExpand description
Render a full HTML page for one route within a multi-page site.
Produces a <!DOCTYPE html> page with site-level <nav>, page content,
and a footer. Theme and accent from SiteConfig are applied via CSS variables.