Add suggestions for skills to search for

When searching for a skill, the current entry is freeform, and it's not easy to see what skills are available, or the exact formatting to use. We could add suggestions which users could use to complete their input.

<img width="467" height="226" alt="Image" src="https://github.com/user-attachments/assets/d9d0a02d-178b-4ae2-bffa-75b549076b9c" />