Resolve "Fix resolve button not showing in MR thread"

What does this MR do?

This MR fixes the issue (#32157 (closed)) where the "Resolve" button was not showing on some MR threads.

Screenshots

	Before (on master)	After (in this MR)
Priveleged user can now see Resolve 🎉
Guest user still can't see Resolve 🎉

Does this MR meet the acceptance criteria?

Conformity

• [ ] Changelog entry Changelog not needed because this was introduced and fixed in the same release
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Closes #32157 (closed)