Tree Shaking with Vite not working

**Bug 🐞**

### What is the current behavior?
To reduce bundle-size, I follow the documentation recommandation : https://www.algolia.com/doc/guides/building-search-ui/going-further/improve-performance/vue/?client=Vue+3#optimize-build-size

When running `npm run build`, all vue-instantsearch is compiled whereas I simply do `import 'vue-instantsearch/vue3/es';` in counter.js file.

### Make a sandbox with the current behavior
https://stackblitz.com/edit/vitejs-vite-nyimj5?file=counter.js&terminal=dev

### What is the expected behavior?
`import 'vue-instantsearch/vue3/es';` in counter.js file should import nothing

### What is the proposed solution?
What is your recommandation to make tree-shaking working ?

### What is the version you are using?
"vue-instantsearch": "^4.6.0"

Start by reproducing the behavior in the linked StackBlitz sandbox and inspect the import in counter.js for vue-instantsearch/vue3/es. Compare the Vite build output with the expected unused-code elimination; done means the build excludes unused vue-instantsearch code or documents the required tree-shaking configuration.

Written by the indexing model from the issue text.