[providers] ajout naofood Nantes

[arthurlutz]

No description provided.

[taratatach]

Hi @arthurlutz, thank you for your contribution ! 😃

I've ran the src/providers.js script and found out there are other new providers which could be included as well.
However the provider ids shouldn't be changed and the script does not take into account existing provider ids so we can't use its output as is.

Would you be willing to make the necessary changes to:
a. be able to fetch the list of providers from coopcycle.org as is already done
b. keep untouched the existing provider/providerId mapping
c. make sure providers are still displayed in alphabetical order to the user ?

Otherwise I'll do it myself but I can't guarantee when it'll be available.

Again, thank you for contributing and raising my awareness around in the addition of new providers 😃