[Behavioural_QC] Display profile level feedbacks

[CamilleBeau]

Brief summary of changes

This PR changes the query for the behavioural feedback tab of the Behavioural QC module to use "LEFT JOIN" instead of "JOIN" on visit specific tables so that profile level feedbacks that do not relate to any visit will be displayed.

COALESCE function is used for the project and site fields to take the visit project / site if it exists, and the candidate project / site otherwise.

The link to the profile is also added in the feedback level column.

• Have you updated related documentation?

Testing instructions (if applicable)

1. Add a profile level feedback as well as a visit level feedback
2. Go to the Behavioural QC module feedback tab
3. Make sure the feedbacks are displayed in the filterable datatable
4. Try filtering for the feedback and make sure it works (including site / project filter)
5. Try clicking the link to go to the profile, make sure it takes you to the right candidate visit list

Link(s) to related issue(s)

• Resolves [behavioural_qc] New Profile-level feedback not showing up in the Feedback table #9138

[driusan]

@CamilleBeau This has conflicts in the changelog

[CamilleBeau]

@driusan resolved!

[nicolasbrossard]

Code looks code and PR works as expected on my VM. Approving.