Update base path build setting for core and repl packages

packages/core/vite.config.js

@@ -4,6 +4,7 @@ import { resolve } from 'path';
 
 // https://vitejs.dev/config/
 export default defineConfig({
+  base: './',
   plugins: [],
   build: {
     lib: {

packages/repl/vite.config.js

@@ -6,6 +6,7 @@ import replace from '@rollup/plugin-replace';
 
 // https://vitejs.dev/config/
 export default defineConfig({
+  base: './',
   plugins: [],
   build: {
     lib: {