feat(vitepress-twoslash): cache type informations to improve performance

[nakasyou]

Description

VitePress Twoslash takes a long time to render large Types.
This PR solves part of this.

This PR can cache type information with the following code:

export default defineConfig({
  markdown: {
    codeTransformers: [
      transformerTwoslash({
        typesCacheDir: './my-custom-cache-dir'
      })
    ]
  }
})

This will cache the type information in the specified directory.
Use a cache such as GitHub Actions with this to speed up your builds

Linked Issues

Nothing

Additional context

ElysiaJS appears to have cut back on Twoslash because it took 30 minutes to build the documentation. This PR may resolve it.
https://x.com/saltyAom/status/1842140132897615963

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