make visited a boolean (#539)

Co-authored-by: Rich Harris <[email protected]>

Author: Rich-Harris

content/tutorial/03-sveltekit/04-headers-and-cookies/02-cookies/README.md

@@ -12,7 +12,7 @@ export function load(+++{ cookies }+++) {
 	+++const visited = cookies.get('visited');+++
 
 	return {
-		visited
+		visited: visited === 'true'
 	};
 }
 ```
@@ -27,7 +27,7 @@ export function load({ cookies }) {
 	+++cookies.set('visited', 'true', { path: '/' });+++
 
 	return {
-		visited
+		visited: visited === 'true'
 	};
 }
 ```

content/tutorial/03-sveltekit/04-headers-and-cookies/02-cookies/app-a/src/routes/+page.server.js

@@ -1,7 +1,7 @@
 export function load() {
-	const visited = false;
+	const visited = 'false';
 
 	return {
-		visited
+		visited: visited === 'true'
 	};
 }