change: [M3-7740] - Use "default" for non-parent/proxy/child user_type instead of null

[mjac0bs]

Description 📝

API has changed the user_type for regular (non parent/child/proxy) users to return "default" rather than null.

Since we've been basing our mocks off of a null user_type, this API update required some refactoring in the UI, as well as updates to tests (unit and Cypress).

Changes 🔄

• Updates user_type in types.ts apiv4 files to include "default" instead of null a valid value
• Updates factories
• Updates components, unit test, and Cypress tests that explicitly referred to user_type: null or used nullish coalescing to display UI components to a "regular" (non-parent/proxy/child) user.
  • This includes fixing an issue that was causing the user menu to always display the company name above the username for any user type, which should not be visible to regular users.

Preview 📷

Before	After

How to test 🧪

Prerequisites

(How to setup test environment)

• Check out this PR and yarn up.
• Make sure the parent/child feature flag is on and turn the mocks on.

Reproduction steps

(How to reproduce the issue, if applicable)

• Check out develop and yarn up.
• Make sure the parent/child feature flag is on and turn the mocks on.
• Change user_type in serverHandlers.ts to null.
• In desktop view, go to http://localhost:3000 and look at the top menu in the top right of the screen. Observe that the Mock Company is displayed below the username.

Verification steps

(How to verify changes)

• On this PR branch, change user_type in serverHandlers.ts to default.
• Confirm unit tests and e2es pass.
• We should be able to rely on test coverage for the following, but to confirm manually:
  • In desktop view, go to http://localhost:3000 and look at the top menu in the top right of the screen. Observe that the Mock Company is not displayed below the username.
  • Confirm the Login History page displays the appropriate warning notice for restricted users and child users. (http://localhost:3000/account/login-history)
  • Confirm Close Account button is disabled for users with parent/proxy/child user type and not disabled for regular ("default") users. (http://localhost:3000/account/settings)

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[mjac0bs]

Unrelated to the user_type change: we didn't actually need to mock GET account in these login history specs, so it's been removed.

[mjac0bs]

This was the fix for the user menu that would have displayed the company name for regular users, without explicitly checking now that the user_type isn't default.

[jaalah-akamai]

Looking good 👍