'extensions' option doesn't work with native compiler

[khoi-nguyen]

Summary

Additional extensions are not processed by vite-plugin-solid if compiler: 'native'. It works with compiler: 'babel'

solidPlugin({
  compiler: 'native',
  extensions: ['.mdx'],
}),

Versions

• vite-plugin-solid@3.0.0-next.22
• vite@8.1.5
• 2.0.0-beta.31

Minimal reproduction

solidPlugin({
  compiler: 'native',
  extensions: ['.mdx'],
}),

and rename a .tsx file

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Thanks for the amazing work!