UHF-10461: Add support for language direction by rewriting whole editor.

[Arkkimaagi]

UHF-10461

• Cookie banner did not support language directions or language attributes for screen readers
• The editor did not save language options properly to json, so adding languages was inpossible.

What was done

• Whole editor was rewritten
• json syntax was updated
• banner code was updated

How to install

• Make sure your instance is up and running on latest dev branch.
  • git pull origin dev
  • make fresh
• Update the Helfi Platform config
  • composer require drupal/helfi_platform_config:dev-UHF-10461_fixed_cookie_banner_editor
• Run make drush-updb drush-cr

How to test

• Check that this feature works
• 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

Translations

• Translations have been added to .po -files and included in this PR

Other PRs

• Link to other PR

[sonarcloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[khalima]

Great work! Let's merge this. 🚀