Follow-up of story #22226
The comment section of a test execution evolves to display the list of its attachments.
No interaction is available with this list, it will be done later in story #22576.
- Each attachment is displayed (filename) at the right of the comment
- If user clicks on the filename, the file is downloaded
- if user drops an image in the editor, then the corresponding file will appear in the list only after the comment is saved