message: fix(release): add prerelease build task
diff: "start": "ng serve ng-chartist-demo",
  "test": "ng test ng-chartist --watch=false --browsers=ChromeHeadless",
  "doc": "compodoc projects/ng-chartist/src/lib -p projects/ng-chartist/tsconfig.lib.json -d docs",
  + "prerelease": "npm run build:lib",
  "release": "semantic-release",
  "postrelease": "npm run build && npm publish ./dist/ng-chartist-lib && git push --follow-tags origin main",
  "prepare": "husky install",
  