feat: expose partytown types (close #8723) (#8740)

Author: florian-lefebvre

.changeset/tricky-otters-cross.md

@@ -0,0 +1,5 @@
+---
+'@astrojs/partytown': patch
+---
+
+Expose types for TypeScript users

packages/integrations/partytown/src/index.ts

@@ -9,7 +9,7 @@ import { fileURLToPath } from 'node:url';
 import sirv from './sirv.js';
 const resolve = createRequire(import.meta.url).resolve;
 
-type PartytownOptions = {
+export type PartytownOptions = {
 	config?: PartytownConfig;
 };