[Feature]: Org authenticity manual verification

[SuaYoo]

Context

Superadmins should be able to mark an org as manually verified to be who they are. This will display a "verified" badge (added in #2172) next to the org's name in the org's public profile.

Details

Some options for implementation:

1. Single superadminVerified or similarly named field, which would be simplest.
2. A verification object to future-proof for other verification methods in the future, like self-verifying. In that case we could do something like:

{
  verification: {
    status: "unverified" | "verified" | "failed-verification",
    method: "self" | "manual",
    verifiedDate: null | <timestamp>
  }
}

Tasks

• Backend: Add field to API
• Frontend: Allow superadmins to manage org verification field
• Frontend: Show verification badge if enabled

[SuaYoo]

@tw4l I added some initial thoughts on implementation details, feel free to update as needed and finalize.