Jenkins does not readily expose the full CI pipeline progress & outcome

Originally created by @intrigeri on #17071 (Redmine)

As a reviewer of a given branch, I’m supposed to check the results of 3 different Jenkins jobs. There’s no single place that shows me this information: I need to separately check 3 different jobs.
As a developer of a branch, I’m also supposed to check whether the full CI pipeline passed, before I submit my MR. For this I need to track progress of the full pipeline until it has finished running. Currently this means having 3 extra tabs open in my web browser.

I believe that Jenkins pipelines solve this UX problem, but this would imply to rework how we generate jobs.
GitLab CI is not affected by this problem.

Related issues

• Related to tails#16959 (closed)
• Related to #17070

Note: For S11, this fits in:

• D.1 - Make Tails development process more efficient: Having the results of 3 different Jenkins jobs in one single place would save developers' time.