fix(package.json): add missing main field

Author: manast

package.json

@@ -3,6 +3,7 @@
   "version": "1.0.1",
   "description": "A reverse proxy with support for dynamic tables",
   "type": "module",
+  "main": "./dist/index.js",
   "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "source": "./lib/index.ts",