[Feature request] Vue 2 compact with vue-demi

Nobody has claimed this yet.

This is a very cool package but I think Vue 2 compact support is one of the big reasons to use it for some legacy projects which are slowly being migrated to Vue 2.7 or Vue 3
I see this part in the package.json and no Vue 2.x support, would we ever consider doing this?

All the import use: `import ... from 'vue'`, i think [vue-demi](https://github.com/vueuse/vue-demi) would be great for this instead, what do you think?

```
...
"vue": "^3.2.41",
"vue-tsc": "^1.0.8"
},
"peerDependencies": {
"vue": "^3.2"
},
...
```

Start with package.json, especially the Vue and vue-tsc dependencies and peerDependencies, then trace the package's imports from 'vue'. Evaluate how vue-demi would provide compatibility for Vue 2 and Vue 3, and consider the existing package setup when defining done as supported Vue 2.x compatibility without breaking Vue 3 support.

Written by the indexing model from the issue text.