feat: render fixed-width text for nex

bin/src/proto/http.rs

@@ -129,7 +129,7 @@ pub fn serve(listener: &Listener, mut stream: TcpStream) -> Result<()> {
                     head_only,
                 );
             };
-            let cache = page.settings.cache_control.map(|age| format!("max-age={age}"));
+            let cache = page.settings.max_age.map(|age| format!("max-age={age}"));
             let mut headers: Vec<(&str, &str)> = Vec::new();
             // The response body depends on Accept, so a shared cache must not
             // serve one client's format to another.