chore: updated build script

Author: gorhom

package.json

@@ -31,7 +31,7 @@
   "scripts": {
     "typescript": "tsc --noEmit",
     "lint": "eslint \"**/*.{js,ts,tsx}\"",
-    "build": "bob build",
+    "build": "bob build && yarn copy-dts && yarn delete-dts.js",
     "copy-dts": "copyfiles -u 1 \"src/**/*.d.ts\" lib/typescript",
     "delete-dts.js": "find ./lib/commonjs -name '*.d.js*' -delete && find ./lib/module -name '*.d.js*' -delete",
     "example": "yarn --cwd example",