the "wrap_guides" are almost invisible - make them configurable

[erf]

Check for existing issues

• [X] Completed

Describe the feature

If i enable "wrap_guides" they looks almost invisible, perhaps it's alpha and thickness could be made configurable.

E.g.

wrap_guide_alpha = 0.5
wrap_guide_thickness = 2.0 // or "width"?

version Zed Preview 0.124.4

If applicable, add mockups / screenshots to help present your vision of the feature

[jansol]

The colour can already be set in themes (and you can override it in your config, see theme_overrides as described in https://zed.dev/blog/user-themes-now-in-preview)

Edit: specifically the "editor.wrap_guide" key.