docs: fix hono middleware docs (#1367)

docs/pages/guides/validate-session-cookies/hono.md

@@ -14,11 +14,12 @@ import { lucia } from "./auth.js";
 import { verifyRequestOrigin } from "lucia";
 import { getCookie } from "hono/cookie";
 
-import type { User } from "lucia";
+import type { User, Session } from "lucia";
 
 const app = new Hono<{
 	Variables: {
 		user: User | null;
+		session: Session | null;
 	};
 }>();
 
@@ -27,9 +28,9 @@ app.use("*", (c, next) => {
 	if (c.req.method === "GET") {
 		return next();
 	}
-	const originHeader = c.req.headers.get("Origin");
+	const originHeader = c.req.header("Origin");
 	// NOTE: You may need to use `X-Forwarded-Host` instead
-	const hostHeader = c.req.headers.get("Host");
+	const hostHeader = c.req.header("Host");
 	if (!originHeader || !hostHeader || !verifyRequestOrigin(originHeader, [hostHeader])) {
 		return c.body(null, 403);
 	}