build(root): remove spec.js + spec.d.ts files from build artifacts
MODIFY
package.json
package.json
"scripts": {
"postinstall": "yarn clean && yarn build && sleep 5s && yarn test",
"build": "lerna run build",
+ "postbuild": "rimraf packages/**/*.spec.js packages/**/*.spec.d.ts",
"benchmark": "make -C benchmarks",
"watch": "lerna run --parallel --stream watch",
"lint": "lerna run lint",

build(root): remove spec.js + spec.d.ts files from build artifacts