[Enhancement] Show list of referenced GitLab issues in GitLab tab

As a user I would like to see, which GitLab issues got referenced/linked with an OpenProject workpackage. I could search for all comments stating "Issue opened", but this could also lead to false positives and doesn't provide me with a good overview of the issue state in GitLab.

The issues could be located underneath or above the Merge Requests or in a separate Tab "GitLab Issues".

My users also want to see all GitLab events on the GITLAB tab. Many users complain that all activity messages on the ACTIVITY tab are mixed with Gitlab events. They have 100-200 activity messages and 10-20 gitlab messages. It's inconvenient. Putting them in a separate tab will greatly increase the convenience of work.

If @btey tells me and shows me how to implement it, show me best and short way, I'm ready to do it.

Hi all,

A new v2.1 has just been published with changes to the UI and capture of the pipeline events (for now, in beta status). Feel free to try it first in a sandbox environment.

Thanks,
Ben

Awesome! I will test it right away. I will test the pipeline events too. Thanks for your work on this!

Works flawlessly for newly created issues. Doesn't work for already existing issues, but those don't trigger the webhook. A simple issue event will solve that though. I will post my pipeline test results in #43