Update appName to correct title for Authenticated Experience Design Patterns

[adamwhitlock1]

Summary

• Changes the appName so that it is read correctly by screen readers.

Related issue(s)

• A11y Improve navigation and structural elements tmf-auth-exp-design-patterns#163

Testing done

• Tested locally to verify that app title appears in browser tab correctly and is read by screen reader

Screenshots

No UI changes

What areas of the site does it impact?

Authenticated Experience Design Patterns mock form app. No changes being shipped to prod

Acceptance criteria

Title updated

Quality Assurance & Testing

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Linting warnings have been addressed
• Documentation has been updated (link to documentation *if necessary)
• Screenshot of the developed feature is added
• Accessibility testing has been performed

[bellepx0]

LGTM!