chore: add missing externals

Author: ivodolenc

bundler.config.ts

@@ -1,12 +1,12 @@
-import { defineConfig } from '@hypernym/bundler'
+import { defineConfig, externals } from '@hypernym/bundler'
 
 export default defineConfig({
   entries: [
     { input: './src/index.js' },
     { dts: './src/types.ts', output: './dist/index.d.ts' },
     {
       input: './src/svelte/index.js',
-      externals: ['../index.js'],
+      externals: [...externals, '../index.js'],
     },
     { dts: './src/svelte/types.ts', output: './dist/svelte/index.d.ts' },
   ],