disabling error intercept for support app
disabling error intercept for support app

This is because the support app provides custom error pages, and is
not affected by exposing stacktraces to the end user.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet