UC: Invoice creation: printing
UC: Comments: table
UC: Comments: comments section on each page
UC: Comments: comment directive & add button
UC: Comments: call for the list of comments
UC: Comments: correction of the ID - the ID that must be taken into account is the one coming from the route parameters, since the main object is not available yet
UC: Comments: definition for the API
UC: Comments: API client
UC: Comments: API controller
UC: Comments: API controller calling the service
UC: Comments: service
UC: Comments: correction of the service
UC: Comments: creation form
UC: Comments: post call
UC: Comments: posting a comment
UC: Comments: reverse order for the comments
UC: Comments: basic list of comments
UC: Comments: adding the comment at the top of the list after creation
UC: Comments: formatting of times
UC: Comments: creation date