Change gui launch pipeline

Partially completes https://www.notion.so/qim-dtu/Change-GUI-launch-pipeline-2288f09ef32544d6aabc7ba5e17a3ee2. Only partially, since user is not able to pass a different root address and port for now

requested review from @fima

assigned to @s184058

approved this merge request

mentioned in commit d2a07ec8

merged