feat: support Rolldown

[eltigerchino]

Testing integration with https://github.com/vitejs/rolldown-vite

TODOS

• fix the rollupOptions.onwarn setting not silencing the non-existent hook import messages ([Bug]: onwarn does not provide warning.id rolldown/rolldown#4427)
• figure out how to get experimental.enableNativePlugins working https://vite.dev/guide/rolldown#enabling-native-plugins currently it causes styles to not be applied. Likely the reason is that the generated manifest doesn't include style information and therefore not loaded. It could potentially be fixed separately
• wait for build.watch to finish being implemented in vite rolldown (Build watch mode remaining issues vitejs/rolldown-vite#149).
  • bundleClose support is needed for the adapter
• support rolldown in vite-plugin-svelte (vite-rolldown support vite-plugin-svelte#1117)
• find out where we can implement hook filters to reduce js-rust overhead https://rolldown.rs/guide/plugin-development#plugin-hook-filters
  • our resolveId hook needs to run for every id to build an import map

---

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[benmccann]

I filed an issue for a follow-up here: #13756

[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-kit-13747-svelte.vercel.app/