fix(nuxt): usePinia composable type

[th1m0]

This PR fixes a type issue in the nuxt module. using the composable usePinia would always return unknown while it should always return the Pinia type.

Before: composable.d.ts

export * from 'pinia';
export declare const usePinia: () => unknown;

After: composable.d.ts

import type { Pinia } from 'pinia';
export * from 'pinia';
export declare const usePinia: () => Pinia;

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[th1m0]

@posva would be lovely if this could be merged as I currently have to always use as Pinia after usePinia()

	const pinia = usePinia() as Pinia // `as Pinia` is required here because it's Unknown
    const profileStore = useProfileStore(pinia)

[posva]

Does this happen in a blank project? It's the first time I see this issue

[th1m0]

Seems like it does, the type of the composable does not get into the build and defaults to unknown

https://stackblitz.com/edit/github-kd8twaqz?file=node_modules%2F%40pinia%2Fnuxt%2Fdist%2Fruntime%2Fcomposables.d.ts

[posva]

It's so weird, this used to work so maybe a regression in Nuxt. I will merge but release later on after doing a pass on other Nuxt related PRs. Aiming for the end of the month. It's released. Note you can use getActivePinia(), it does the same thing, maybe I should just deprecate usePinia()

[pkg-pr-new]

Open in Stackblitz

npm i https://pkg.pr.new/@pinia/nuxt@2890

npm i https://pkg.pr.new/pinia@2890

npm i https://pkg.pr.new/@pinia/testing@2890

commit: c670d5c

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 91.23%. Comparing base (e3b5f6d) to head (c670d5c).
Report is 2 commits behind head on v3.

Files with missing lines	Patch %	Lines
packages/nuxt/src/runtime/composables.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##               v3    #2890   +/-   ##
=======================================
  Coverage   91.23%   91.23%           
=======================================
  Files          17       17           
  Lines        1381     1381           
  Branches      211      211           
=======================================
  Hits         1260     1260           
  Misses        120      120           
  Partials        1        1           

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