build(pkg): default export

Author: gr2m

package.json

@@ -4,7 +4,7 @@
   "type": "module",
   "description": "Plugin architecture example with full TypeScript support",
   "exports": {
-    "./": "./index.js"
+    ".": "./index.js"
   },
   "types": "./index.d.ts",
   "scripts": {