UHF-9911: React errors resolving

[teroelonen]

UHF-9911

What was done

• Fix errors on form container not having onChange for hidden selects, removing selected attribute from options

How to install

• Make sure your instance is up and running on latest dev branch.
  • git pull origin dev
  • make fresh
• Update the HDBT theme
  • composer require drupal/hdbt:dev-UHF-9911
• Run make drush-cr

How to test

• Go to https://helfi-rekry.docker.so/fi/avoimet-tyopaikat and open inspector.
• Loading the page and selecting some options from the drop down shouldn't cause anymore errors on console like it did before.
• Check the code for the webpack. The feature itself can be tested only on production so there is no way to check this on local.
• Check that code follows our standards

Continuous documentation

• This feature has been documented/the documentation has been updated
• This change doesn't require updates to the documentation

[github-actions]

⚠️ Visual regression found! Please check if this change is wanted or accidental. You can check the output here: https://city-of-helsinki.github.io/drupal-hdbt/pull/970/html_report/