Skip chrome extension errors in sentry

Created by: jasongornall

Feature request description

https://sentry.io/organizations/sourcegraph/issues/3398084109/?project=1391511&referrer=slack Example sentry error. Anything from a chrome extension we should just ignore.

Is your feature request related to a problem? If so, please describe.

Way too much noise from random chrome extensions. We should opt in to recording errors from chrome extension on a case by case basis if necessary. (maybe ublock-origin?)