Release 9.0.0

💥 Breaking Change

• #491 Drop support for Ember < 3.28 (@mansona)
• #488 drop support for EOL node < 18 (@mansona)

🚀 Enhancement

• #492 Move table of contents styling into concepts (@MinThaMie)
• #493 Move header anchor styling into styleguide (@MinThaMie)

🏠 Internal

• #489 move to release-it for deploys (@mansona)

Committers: 2

• Anne-Greeth Schot-van Herwijnen (@MinThaMie)
• Chris Manson (@mansona)