Bounding box is not being created for 12 character BNG references

[CWDamm-Kint]

When entering a 12 character BNG reference, turf.buffer is used to create a bounding box around the point that's identified.

This is currently throwing an error:

20251104-1440-57.1890646.mp4

I think this can be fixed with a relatively small change to how 'meters' is being provided as an argument. The turf docs suggest it needs to be wrapped in an object: https://turfjs.org/docs/api/buffer