docs: update codesandbox link and refresh example lockfile

Author: danielroe

README.md

@@ -5,7 +5,7 @@
 [![Volta][volta-src]][volta-href]
 
 - [📖  Read Documentation (v1)](https://v1.image.nuxtjs.org)
-- [▶️  Play online](https://githubbox.com/nuxt/image/tree/v1/example)
+- [▶️  Play online](https://githubbox.com/nuxt/image/tree/main/example)
 
 ---