make wrap optional

[juliettelavoie]

Sometimes the wrap of the colorbar label is annoying, especially when working with subplots. It wraps too much.

I would like to add an argument to make it optional or even choose the length at which to wrap.
I guess we might need one for the title and colorbar to be consistent, but the problem is mostly with colorbars.
Do you think it is overkill ?

My current solution is just to rewrite it as I want after spirograph with
axs[j,i].collections[-1].colorbar.set_label(f"{diff.attrs['long_name']} ({diff.attrs['units']})", fontsize=18)