Refactor button variant and color in 404 page

packages/studiocms_frontend/src/routes/404.astro

@@ -14,7 +14,7 @@ import Layout from '../components/Layout.astro';
 			</div>
 			<h2>Page not found</h2>
 			<p>The page you are looking for might have been removed had its name changed or is temporarily unavailable.</p>
-			<Button as="a" href="/" variant='solid' class="return"><span>Back to Homepage</span></Button>
+			<Button as="a" href="/" variant={'outlined'} color="primary" class="return"><span>Back to Homepage</span></Button>
 		</div>
 	</div>