fix: direct pinia-plugin-persistedstate repo link to nuxt package

[prazdevs]

The quickstart docs displayed on the nuxt modules page is the normal plugin docs instead of the nuxt module one.

[atinux]

Do you mean the docs from https://nuxt.com/modules/pinia-plugin-persistedstate ?

[prazdevs]

Ye, it displays the readme of the base repo, and not the one of the module (which explains how to quickly get started with nuxt). And some people reported it in the plugin repo.

[atinux]

It's related to nuxt.com website, I will fix it soon

[shiny]

I got stuck and resolved the problem with this pull request. This is helpful, hope it will be merged soon.