[TTAHUB-2907] Add "something went wrong" page

[AdamAdHocTeam]

Description of change

This adds a "something went wrong" context page to the HUB.

Currently its hooked up to the retrieval on AR, Event, Session, and Goals.

How to test

• Review the code.
• Ensure we match the UX design.
• Make sure we correctly display the relevant page for each error code type (404 vs 500) etc.
• Test by changing handlers to throw various response codes.

Issue(s)

• https://jira.acf.gov/browse/TTAHUB-2907

Checklists

Every PR

• Meets issue criteria
• JIRA ticket status updated
• Code is meaningfully tested
• Meets accessibility standards (WCAG 2.1 Levels A, AA)
• API Documentation updated
• Boundary diagram updated
• Logical Data Model updated
• Architectural Decision Records written for major infrastructure decisions
• UI review complete

Before merge to main

• OHS demo complete
• Ready to create production PR

Production Deploy

• Staging smoke test completed

After merge/deploy

• Update JIRA ticket status

[thewatermethod]

1. any unmatched route still renders the old "not found" page.
2. We should probably also update the feature flag to render the new page instead of the old not found page (look at FeatureFlag.js to see what I mean)
3. The home link is noticeably smaller than the other text on the page

[thewatermethod]

Other pages that might need this: Groups, Communication Log, Recipient Record.