[IDE] Make desktop IDEs contribute their own actions

[csweichel]

Is your feature request related to a problem? Please describe

Today desktop IDEs assume that there's a link they can redirect to. This is not always the case. Sometimes a desktop IDE is used by running a command (e.g. #9323). If we wanted to introduce means other than redirecting to a URL, such as displaying some additional content, we would need to extend the dashboard on a case-by-case basis.

Instead, desktop IDEs should be able to contribute their own follow-up actions through blobserve, akin to how web IDEs do it. We could either serve a JSON manifest which gets used (in which case this could become part of the IDE configmap), or HTML instead.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.