UHF-10104 Javascript fixes

[khalima]

UHF-10104

What was done

• Switched linked events getDay() method to use getDate().
• Load the hyphenopoly_loader in head.
• Scratch the drupal behavior from hyphenopoly settings as it might mess up the loading of hyphenopoly.
• Fixed Cannot read properties of null (reading 'dataset') error when browsing avustukset in mobile width.

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-10104
• Run make drush-cr

How to test

• Check that the loading of hyphenopoly works without loading errors.
• Check that code follows our standards

[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/1004/html_report/

[teroelonen]

Very nice work 🦖