message: build(extend-theme): exclude test files from package core
diff: {
  "extends": "../../tsconfig.json",
  - "include": ["src"]
  + "include": ["src"],
  + "exclude": [
  + "src/tests",
  + "**/*.spec.ts",
  + "**/*.spec.tsx",
  + "**/*.test.ts",
  + "**/*.test.tsx",
  + "**/*/*.stories.tsx"
  + ]
  }
  