Repository: storybook
Issue: [Bug]: Package exports are not properly interpreted in a mono-repo setup
Labels: bug,has workaround,monorepos,sev:S3

### Describe the bug

# Background

We have a mono-repo which houses multiple packages. Some of the packages share dependencies, and throughout our packages, different versions of the same package are being used.

# The issue
Storybook is not interpreting `exports` from `package.json`s between multiple versions correctly - it seems to be deduping them so only a single version gets pulled in.


### Reproduction link

https://github.com/willwill96/storybook-exports-repro

### Reproduction steps

> Note: this is a bit complex since it involves publishing packages, but I tried to make the repro as simple as possible.

1. Use [verdaccio](https://verdaccio.org/) to set up a local npm registry
  a. `docker run -it --rm --name verdaccio -p 4873:4873 verdaccio/verdaccio`
  b. ` npm adduser --registry http://localhost:4873`
2. Publish the local package versions to the local registry
  a. `cd version-1 && npm publish`
  b. `cd ../version-2 && npm publish` 
  > Note this should publish `@willwill96-storybook/test@1.0.0` & `@willwill96-storybook/test@2.0.0`
  These are relatively simple packages. They each have a single file `subpath/index.js` which have a single string export of `This is version 1` & `This is version 2` respectively. 
3. Run the local storybook server
  a. `cd ../storybook && npm install && npm run storybook`
> Note: There are two packages within the storybook monorepo: `downstream-package-1` & `downstream-package-2` which each respectively pull in the package published in the prior step. `downstream-package-1` & `downstream-package-2` each have a simple `stories.tsx` file which looks like the following:
```tsx
import type { Meta, StoryObj } from '@storybook/react';
import {test} from '@willwill96-storybook/test/subpath'

// More on how to set up stories at: https://storybook.js.org/docs/writing-stories#default-export
const meta = {
  title: 'Example/Version 2',
};

export default meta;
type Story = StoryObj<typeof meta>;

// More on writing stories with args: https://storybook.js.org/docs/writing-stories/args
export const Primary: Story = {
    render: () => <div>{test}</div>
};
```
  b. Navigate to storybook at `http://localhost:6006` and note that both stories render the text `This is version 1`

The *expected* behavior would be for the `Example/Version 1` story to render `This is version 1` and the `Example/Version 2` story to render `This is version 2`.



### System

```bash
System:
    OS: Linux 5.15 Ubuntu 22.04.1 LTS 22.04.1 LTS (Jammy Jellyfish)
    CPU: (4) x64 AMD Ryzen 7 5825U with Radeon Graphics
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 18.19.0 - ~/.nvm/versions/node/v18.19.0/bin/node
    npm: 10.2.3 - ~/.nvm/versions/node/v18.19.0/bin/npm <----- active
  npmPackages:
    @storybook/addon-essentials: ^8.1.10 => 8.1.10
    @storybook/addon-interactions: ^8.1.10 => 8.1.10
    @storybook/addon-links: ^8.1.10 => 8.1.10
    @storybook/addon-onboarding: ^8.1.10 => 8.1.10
    @storybook/blocks: ^8.1.10 => 8.1.10
    @storybook/react: ^8.1.10 => 8.1.10
    @storybook/react-vite: ^8.1.10 => 8.1.10
    @storybook/test: ^8.1.10 => 8.1.10
    eslint-plugin-storybook: ^0.8.0 => 0.8.0
    storybook: ^8.1.10 => 8.1.10
```



### Additional context

What is kind of interesting is that I get the expected behavior if I change my import from:
`import {test} from '@willwill96-storybook/test/subpath'`
to:
`import {test} from '@willwill96-storybook/test/subpath/index'`

I understand that this is pretty complex for a reproduction, but I wasn't sure how else I could reproduce the issue. If there's anything I can do to help, please let me know.