Remove Pipeline name in favor of only using the Pipeline file path

[yannickperrenet]

Describe the problem this improvement solves
We decided to only show the Pipeline file path in the UI to remove the duality between Pipeline name and Pipeline file path (name) -- with the removal of the Pipeline list view the Pipeline name was no longer needed. However, in some places we are still using the Pipeline name:

• Pipeline settings. There is no need to edit the name since it won't be shown anyways.
• Jobs. Dropdown should show pipeline paths.

Describe the solution you'd like
Complete removal of the Pipeline name in the UI.

Would be great to then also remove it from the pipeline definition, i.e. make changes to compat.py.

Screenshots