Fix signout maybe

[benmartin-coforma]

Description

Follow-up PR to #11929. That change affected what happens when the user clicks "Log Out"; this change should affect what happens on page load.

Related ServiceNow support ticket: CS2371782

Amplify documentation: https://docs.amplify.aws/react/build-a-backend/auth/connect-your-frontend/manage-user-sessions/#refreshing-sessions

---

How to test

1. Log in via IDM for appropriate environment.
2. When you are logged into the app, log out.
3. After the redirect to IDM/Okta, log out of IDM.
4. Enter the url for the app. YOU SHOULD NOT BE ALREADY AUTHENTICATED.

---

Pre-review checklist

• I have added thorough tests, if necessary
• I have updated relevant documentation, if necessary
• I have performed a self-review of my code
• I have manually tested this PR in the deployed cloud environment

---

Pre-merge checklist

Review

• Design: This work has been reviewed and approved by design, if necessary
• Product: This work has been reviewed and approved by product owner, if necessary

Security

If either of the following are true, notify the team's ISSO (Information System Security Officer).

• These changes are significant enough to require an update to the SIA.
• These changes are significant enough to require a penetration test.