Added signup page.

pages/users/@username/+Page.vue

@@ -17,8 +17,6 @@ import { inject } from 'vue';
 
 const pageContext = inject('pageContext');
 const profile = pageContext.pageProps.profile;
-
-console.log('profile', profile);
 </script>
 
 <style scoped>

pages/users/@username/+onBeforeRender.js

@@ -1,8 +1,14 @@
+import { render } from 'vike/abort'; /* eslint-disable-line import/extensions */
+
 import { fetchUser } from '#/src/users.js';
 
 export async function onBeforeRender(pageContext) {
 	const profile = await fetchUser(pageContext.routeParams.username);
 
+	if (!profile) {
+		throw render(404, `Cannot find user '${pageContext.routeParams.username}'.`);
+	}
+
 	return {
 		pageContext: {
 			title: profile.username,