splitting query moved to web worker

packages/web/rollup.config.js

@@ -7,8 +7,10 @@ import { terser } from 'rollup-plugin-terser';
 import sveltePreprocess from 'svelte-preprocess';
 import typescript from '@rollup/plugin-typescript';
 import replace from '@rollup/plugin-replace';
+import webWorkerLoader from 'rollup-plugin-web-worker-loader';
 import css from 'rollup-plugin-css-only';
 
+
 const production = !process.env.ROLLUP_WATCH;
 
 function serve() {
@@ -99,6 +101,8 @@ export default {
     // If we're building for production (npm run build
     // instead of npm run dev), minify
     production && terser(),
+
+    webWorkerLoader(),
   ],
   watch: {
     clearScreen: false,