fix: don't show users an error if they submit surveys on instances no…
Created by: dadlerj
…t connected to the internet
Addresses https://github.com/sourcegraph/sourcegraph/issues/8598
From an ugly red error message hitting users in the face, to:
00:08:26 frontend | ERROR Unable to submit survey results to Sourcegraph remote, error: hubspot.SubmitForm: Post https://forms.hubspot.com/uploads/form/v2/2762526/a86bbac5-576d-4ca0-86c1-0c60837c3eab: dial tcp: lookup forms.hubspot.com: no such host