[CORL-3208] Display SSO duplicate email errors in the Relay network error prompt

[nick-funk]

What does this PR do?

Displays the Specified email address is already in use message when a new SSO token has a conflicting email with an existing user.

These changes will impact:

• commenters
• moderators
• admins
• developers

What changes to the GraphQL/Database Schema does this PR introduce?

None

Does this PR introduce any new environment variables or feature flags?

No

If any indexes were added, were they added to INDEXES.md?

N/A

How do I test this PR?

Using multi-site-test, set up an SSO secret and two unique users with the same email payload:

"sso": {
        "secret": "ssosec_f73a2830f6285...",
        "users": [
          {
            "id": "95b83d1d-c15b-40e6-adbe-d4f07ace3fae",
            "username": "dupe1",
            "email": "dupe@test.com",
            "role": "COMMENTER",
            "badges": []
          },
          {
            "id": "4d7d6d87-769c-40cd-8550-8ea0537d29ee",
            "username": "dupe2",
            "email": "dupe@test.com",
            "role": "COMMENTER",
            "badges": []
          },
         ...

• run the site and ensure it's allowed in Coral allowed domains (under organization, sites)
  • be sure to allow registration
• see that when you view the first user, then second user (or vice versa) it shows that the second user you try and sign in as receives the dupe email error

Were any tests migrated to React Testing Library?

No

How do we deploy this PR?

• Merge to develop

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[nick-funk]

this fixes the dev client builds not actually compiling (transpiling) the client TS code and it only doing the generate steps

[kabeaty]

Looks good and works as expected to show duplicate email error!