Function render_with_layout_path 

pub fn render_with_layout_path(
    layout_source: &str,
    content: &str,
    data: &Value,
    partial_renderer: Option<&'_ dyn Fn(&str, &Value) -> Result<String, String>>,
    layout_path: Option<&str>,
) -> Result<String, String>

Render content with a layout, including layout path for error reporting.