fix: update eslint glob pattern to include all files correctly (#67)

package.json

@@ -18,7 +18,7 @@
   },
   "main": "dist/index.js",
   "scripts": {
-    "lint": "eslint src/**.ts --max-warnings=0",
+    "lint": "eslint src/**/*.ts --max-warnings=0",
     "watch": "npm run build && npm link && nodemon",
     "build": "rimraf ./dist && tsc",
     "prepublishOnly": "npm run lint && npm run build"