docs: use `toUTCString` in `useAsyncData` example (#5798)

docs/content/3.api/2.components/4.nuxt-link.md

@@ -91,7 +91,7 @@ Defaults can be overwritten, see [overwriting defaults](#overwriting-defaults) i
 
 You can overwrite `<NuxtLink>` defaults by creating your own link component using `defineNuxtLink`.
 
-```js [components/MyNuxtLink.js]
+```js [components/MyNuxtLink.ts]
 export default defineNuxtLink({
   componentName: 'MyNuxtLink',
   /* see signature below for more */
@@ -100,7 +100,7 @@ export default defineNuxtLink({
 
 You can then use `<MyNuxtLink />` component as usual with your new defaults.
 
-:button-link[Open on StackBlitz]{href="https://stackblitz.com/github/nuxt/framework/tree/main/examples/routing/nuxt-link?terminal=dev&file=/components/MyNuxtLink.js" blank}
+:button-link[Open on StackBlitz]{href="https://stackblitz.com/github/nuxt/framework/tree/main/examples/routing/nuxt-link?terminal=dev&file=/components/MyNuxtLink.ts" blank}
 
 ### `defineNuxtLink` signature
 

docs/content/4.examples/4.routing/nuxt-link.md

@@ -7,7 +7,7 @@ template: Example
 This example shows different ways to use `<NuxtLink>`.
 
 ::alert{type=info icon=💡}
-`components/myNuxtLink.js` defines a custom `<NuxtLink>`.
+`components/myNuxtLink.ts` defines a custom `<NuxtLink>`.
 ::
 
 ::ReadMore{link="/api/components/nuxt-link"}

examples/composables/use-async-data/server/api/hello.ts

@@ -1 +1 @@
-export default req => `Hello world (${req.url.substr(1)}) (Generated at ${new Date().toGMTString()})`
+export default req => `Hello world (${req.url.substr(1)}) (Generated at ${new Date().toUTCString()})`