This PR introduces Keystatic to let us edit twenty.com's content with a CMS. For now, we'll focus on creating release notes through Keystatic as it uses quite simple Markdown. Other types of content will need some refactoring to work with Keystatic. https://github.com/user-attachments/assets/e9f85bbf-daff-4b41-bc97-d1baf63758b2 --------- Co-authored-by: Félix Malfait <felix@twenty.com>