Ensure to log fetch errors

[Kiko Beats]

If fetch failed, there is not an easy way to report the error:

sdk/packages/react/src/index.js

Line 88 in c4d87f3

 fetch.then(({ data }) => mergeData(data)) 

Need to add the logic necessary to make easy report any kind of error, linking the repository with the error

[Brad Adams]

I think you can tie this in with the context PR here: https://github.com/microlinkhq/sdk/pull/169/files#diff-8caae6eaf0ff9059e6b6a883d6117a2aR70

[Kiko Beats]

done at d13c967