fix: don't copy public folder in service worker build (sveltejs#10082)

Author: userquin

.changeset/tame-kangaroos-film.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fix: don't copy public folder in service worker build

.gitignore

@@ -18,3 +18,4 @@ vite.config.js.timestamp-*
 .vercel
 .test-tmp
 symlink-from
+.idea/

packages/kit/src/exports/vite/build/build_service_worker.js

@@ -79,8 +79,9 @@ export async function build_service_worker(
 			outDir: `${out}/client`,
 			emptyOutDir: false
 		},
-		define: vite_config.define,
 		configFile: false,
+		define: vite_config.define,
+		publicDir: false,
 		resolve: {
 			alias: [...get_config_aliases(kit), { find: '$service-worker', replacement: service_worker }]
 		}