Draft: docs(codeowners): add Dan MH as pajamas maintainer

This MR follows [time] working on my trainee maintainer issue.

Larger efforts

• Structure images
• Embedded examples
• …

Maintainer-level reviews

• Considerations to principles !3785 (merged)
• Remove frequently confused words !3626 (merged)
• Removing information about case and bullets !3645 (merged)
• Use gl-heading styles !3707 (merged)
• Add scenario of promoting features in accordion !3721 (closed)
• …

(Full list of reviews on my trainee maintainer issue)

Things I want to continue working on

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