Allow commenting to resolved non-diff discussions
What does this MR do?
Fixes ability to reply to a resolved non-diff discussion by making the Reply button visible for resolved non-diff discussions with no replies.
What are the relevant issue numbers?
Fixes #54330 (closed)
Does this MR meet the acceptance criteria?
- Changelog entry added, if necessary
- Documentation created/updated
- Tests added for this feature/bug
- Conforms to the code review guidelines
- Conforms to the merge request performance guidelines
- Conforms to the style guides
- Conforms to the database guides
- Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.