Add auditing for the Feedback class

What does this mr do?

Implement the envers library which automatically keeps track of updates to certain objects.

Admins can export the changes from in a csv format allowing them to easily look through it.

Screenshots

before

after

Does this MR meet the acceptance criteria?

• I have added a changelog entry to reflect the significant changes I made.
• Tests were created to test the feature.
• I have updated the documentation accordingly.
• I adhere to the style guide.

Partially resolves: #215