Update UI used to display Flow Explainer responses

### Description

### Current

<img width="1657" alt="Image" src="https://github.com/user-attachments/assets/f398e96c-25b6-4597-9d8a-b639c70b47eb" />

### Proposal

<img width="1611" alt="Image" src="https://github.com/user-attachments/assets/2e2f3259-8214-4dd8-9b36-53b049b454cd" />

Follow on from https://github.com/FlowFuse/node-red/issues/37


### Epic/Story

_No response_