Support Vite Bundled Dev Mode

[birkskyum]

Introduced experimental support in Vite 8.1

https://vite.dev/blog/announcing-vite8-1

This mode is enabled with

export default defineConfig({
    experimental: {
      bundledDev: true,
    },
    plugins: [
      solidStart(),
      nitro(),
    ],
  });

Or with teh vite --experimental-bundle flag

Bare example

Without bundledDev:

With bundledDev:

[changeset-bot]

🦋 Changeset detected

Latest commit: 4b6f0f9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@solidjs/start	Patch

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