feat: use new default green for ui icons

[mariohamann]

Description:

Definition of Reviewable:

• [ ] Documentation is created/updated
• [ ] Migration Guide is created/updated
• [ ] E2E tests (features, a11y, bug fixes) are created/updated
• [ ] Stories (features, a11y) are created/updated
• [ ] relevant tickets are linked

[coraliefeil]

Confusingly in the mark-up the values are correct. But if I zoom in and chose the color it is still the old values. ??

[coraliefeil]

Alright. A hick-up. All good <3