Fix the d.ts file of addon-links, mark LinkTo in index as deprecated

[ndelangen]

Issue: #20580

What I did

• Add react entrypoint to types exports map
• fix the .d.ts file which seems to suffer from a bug in tsup
  Can likely be removed at 8.0 when preview-api is simplified
• mark LinkTo as deprecated in the index entrypoint

[ndelangen]

I found of there was confusion about the LinkTo component, which should come from the react entrypoint, but everything else should come from the index entrypoint:
https://github.com/DannyJoris/storybook-nextjs-linkto/pull/1/files#diff-8f0abfa5fd53937fe7e24ab4c3987d3b9e6558e770409898a13b2800934aab02R1-R2

[DannyJoris]

@ndelangen Thanks for that!

The TypeScript issue for LinkTo still remains it looks like. This is using 7.0.0-beta.31:

[ndelangen]

@DannyJoris do you have any custom type definitions setup for @storybook/addon-links?

try adding this to the top of your file:

import React from 'react'

I was able to make it work in a sandbox:

[DannyJoris]

@ndelangen No other types defined, and importing React didn't work either.

What did work is upgrading: something in beta32 or 33 fixed it: #20580 (comment)

Thanks again for all your help! I appreciate it.