Wind speed overlay on c-haines view

**As a** *(User Type/Persona)* **I want** *a wind speed overlay in addition to c-haines* **So That** *I can decide if a high c-haines value is of concern*

**Additional Context**
- High C-Haines values, in addition to high wind speeds are an indicator of the potential for blow up conditions. C-Haines in isolation can quite often be ignore due to various issues. (e.g. in a scenario where there's a low temperature, no wind, and a high C-Haines - we'd be less concerned, than if there was high temperature and strong winds).
- There are a lot of ways to show wind speed, the idea proposed by Jesse is to have areas of wind speed (similar to how areas of high c-haines are grouped).
- Env. Canada already has a WMS wind layer - that could be used, but it would probably animate better if it were in the same format as the c-haines. The End. Canada layer uses arrows with colour indicating strength, as opposed to Jese's idea of using area.

**Acceptance Criteria**
- [ ] Given (Context), When (action carried out), Then (expected outcome)
- [ ] Given (Context), When (action carried out), Then (expected outcome)

The payload names no files or tests; start by locating the c-haines view and checking how existing map or WMS overlays are wired. Clarify whether wind should use grouped areas or the Environment Canada layer, then define acceptance criteria for displaying wind alongside c-haines.

Written by the indexing model from the issue text.