Nuxt 3 support

Tried to use this in Nuxt 3 but seems like it doesn't work out-of-the-box

Your environment

gridstack: "^7.2.3"
stackblitz

Steps to reproduce

npm install --save gridstack
https://stackblitz.com/edit/nuxt-starter-yuoyxf?file=package.json,app.vue

Expected behavior

shows error document is not defined, which I assume is due to Nuxt's SSR, but wrapping the divs in <ClientOnly> component doesn't work and not sure how to deal with the script part.