TEST: Fix outgoings page in Firefox/Chrome
TEST: Fix outgoings page in Firefox/Chrome

- Pause before setting partner questions (due to reveal transition)
- Reuse `fillInIncome` command
- `waitForElementPresent` before asserting page URL

ministryofjustice/cla_public,ministryofjustice/cla_public,ministryofjustice/cla_public,ministryofjustice/cla_public