Feature/update cypress 10

[JaviIG]

Upgrades Cypress to version 12. This enables us to test on Safari, and should improve Cypress performance on Silicon macbooks.

• Ignore cypres.config.ts in eslint from now. This messes us types with jest if included in the src tsconfig. PR is already big enough to do another change here.
• Component testing:
  • Corrects imports
  • Loading CSS from the mount function has been depracted, so I added an small utility
• E2e testing
  • Fixes issue with sort test: Cypress couldn't locate the element to select using the children call
  • Fixes issue with keyboard navigation. It wasn't able to retrieve the old focused element correctly. Now it does.