[#8012] redesign moderator feedback

[hom3mad3]

Description: Redesign the moderator feedback element on the item detail page:

The moderator feedback can be tested on /budgeting/2024-00014/

Tasks

• [x] PR name contains story or task reference
• [x] Steps to recreate and test the changes
• [ ] Documentation (docs and inline)
• [ ] Tests (including n+1 and django_assert_num_queries where applicable)
• [x] Changelog

[hom3mad3]

@goapunk updated with empty status