UHF-9389: Fixing issue with errand-services on desktop layout, moving main-image styles to a separate style file

[teroelonen]

UHF-9389

What was done

• Removing styles that caused issues on errand-services on desktop sizes.
• Moving the main-image styles to a separate style file.

How to install

• Make sure your instance is up and running on latest dev branch. Select a instance that has TPR on.
  • git pull origin dev
  • make fresh
• Update the HDBT theme
  • composer require drupal/hdbt:dev-UHF-9389
• Run make drush-cr

How to test

• Go to a service page that has errand services such as https://helfi-sote.docker.so/fi/sosiaali-ja-terveyspalvelut/vammaispalvelut/terveys-ja-kuntoutuspalvelut/fysioterapiapalvelut and make sure that the errand-services are inline with the rest of the content.
• Go to a unit page and make sure the main image is still inline with rest of the content and limited to max-width of 860px. For example https://helfi-sote.docker.so/fi/sosiaali-ja-terveyspalvelut/keskustakirjasto-oodi
• Check that code follows our standards

Designers review

• This PR does not need designers review
• This PR has been visually reviewed by a designer (Name of the designer)

[khalima]

Let's go with this fix. 🚀