feat: commandStack.changed event provides context

[PabloDons]

Which issue does this PR address?

Closes #479

Acceptance Criteria

• Corresponds to the concept
• Corresponds to the design

Definition of Done

• corresponds to the design principles
• corresponds to the code standards
• passes Continuous Integration checks
• available as feature branch on GitHub
  • contains the cleaned up commit history
  • commit messages satisfy our commit message guidelines
  • a single commit closes the issue via Closes #issuenr

[nikku]

Great. I did add some minor simplifications on top of your PR via 43512f4 and will go ahead and merge that one after I got your O.K.

Please double check the simplifications I made as well as my review comments.

[PabloDons]

I have tested your simplifications and it works perfectly in my use case! 👍

[nikku]

Squashed and merged via #529.

Thanks for your contribution.