Add default profiling explicitly in xml configs

[davidscn]

To raise awareness of this option and have a starting point for potential modifications.

Checklist:

• I added a summary of any user-facing changes (compared to the last release) in the changelog-entries/<PRnumber>.md.
• I will remember to squash-and-merge, providing a useful summary of the changes of this PR.

[davidscn]

@MakisH do you think it is a good idea to include it everywhere, e.g., also the quickstart?

[MakisH]

@MakisH do you think it is a good idea to include it everywhere, e.g., also the quickstart?

Since profiling does not make anything more complicated or more prone to dependency issues (right?), then I think consistency would be better and have it everywhere.

Thanks for asking, I did not notice you did not update the Quickstart.