To build an react app:
   (if you have installed node.js, go to point 3)
   1. Go to site https://nodejs.org/en/download/
   2. Download and install Node.js (LTS version)
   3. Open the IDP/react/idp-ui/.env.production file
   4. Change the value for the REACT_APP_WEB_URL_API string:

      4.1. For production server: https://api.taloyhtio.info
      4.2. For dev server: https://10.20.20.38:58273
      4.3. For test Smartech server: http://10.10.108.239:58273
   5. Open a terminal
   6. Go to the IDP/react/idp-ui in terminal
   7. Run in the terminal: npm install
   8. Run in the termanal: npm run build