Log GraphQLErrors automatically

[frandiox]

The new errors returned in const {data, errors} = await storefront.query(...) are likely to be missed because they are not breaking the flow.

This PR adds an auto-logger for this type of error and enhances it with the query name.

---

Aside from that, I realized we were not showing the GraphiQL link anymore for this kind of error. This is fixed now:

[wizardlyhel]

Could we make logError a callback function (error?: GraphQLError) => boolean? Our default would be just () => true

I have been thinking how we can extend the ability of selectively suppressing errors to developers instead of just all console log or not. We do have a case of cart query returning graphql errors that can be safely ignored.

(edit) I made the boolean function passing back single error after looking at your code. So it would be just

result.errors.forEach((error: Error) => {
  if (error) {
    error.stack = getSyncStack(error.message, error.name);
      if (logErrors(error)) console.error(error);
   }
 });

[wizardlyhel]

like this #1729

[frandiox]

@wizardlyhel What about boolean | ((error: Error) => boolean)? I can revert it if it's no good 👍