refac: fetch pyodide deps at build time, not checked into git

vite.config.ts

@@ -19,5 +19,8 @@ export default defineConfig({
 	plugins: [sveltekit()],
 	define: {
 		APP_VERSION: JSON.stringify(process.env.npm_package_version)
+	},
+	worker: {
+		format: 'es'
 	}
 });