[Resolver] Invoking resolver when macro is present anywhere in comment body

[malhotra5]

End-user friendly description of the problem this fixes or functionality that this introduces

• [ ] Include this change in the Release Notes. If checked, you must provide an end-user friendly description for your change below

---

Give a summary of what the PR does, explaining any non-trivial design decisions

Previously the resolver would only be trigger if the comment body started with the target macro. This PR ensures that the resolver gets triggered when the target macro is present anywhere in the comment body.

---

Link of any specific issues this addresses

5184

[enyst]

This is great to have, thank you! I doubt many people remember it has to be at the beginning 😅