Prompt to join org does not work with SSO

[igorlesnenko]

• Now we require email to be verified to use prompt to join org
• For loginWithSAML we don't create identities array, which we use to determine if email is verified
• This cause a bug

Solutions:

• Quick solution is to use this workaround like we used for autojoin fix: can auto join with saml login #9189
• Good solution, add identities array Add identity for SAML sign-ups #9202

[igorlesnenko]

No, quick solution is not very good, we checking identities several times in nested prompt to join functions.

[Dschoordsch]

I propose the quickfix:

• change https://github.com/ParabolInc/parabol/blob/master/packages/server/utils/isUserVerified.ts to also check the login type
• use this function instead of manually checking the identities everywhere

[igorlesnenko]

We have many loops where isUserVerified is called. I'm worrying that it is async and it may accidentally cause a lot of queries. Let me check, I feel that the right way to fix it would be not much complex

[igorlesnenko]

I started with identities solution, but it feels more tricky, will link my draft PR and will do a quick one.
#9420

[jordanh]

This would be good for us to fix finish fixing up. I'll add it near the top of our queue