Merge pull request #751 from code0-tech/fix-user-admin-field

Make user.admin nullable

Author: Taucher2003

app/graphql/types/user_type.rb

@@ -9,7 +9,7 @@ class UserType < Types::BaseObject
     field :avatar_path, String, null: true, description: 'The avatar if present of the user'
 
     field :admin, Boolean,
-          null: false,
+          null: true,
           description: 'Global admin status of the user',
           authorize: :read_admin_status
     field :email, String, null: true, description: 'Email of the user', authorize: :read_email

docs/graphql/object/user.md

@@ -8,7 +8,7 @@ Represents a user
 
 | Name | Type | Description |
 |------|------|-------------|
-| `admin` | [`Boolean!`](../scalar/boolean.md) | Global admin status of the user |
+| `admin` | [`Boolean`](../scalar/boolean.md) | Global admin status of the user |
 | `avatarPath` | [`String`](../scalar/string.md) | The avatar if present of the user |
 | `createdAt` | [`Time!`](../scalar/time.md) | Time when this User was created |
 | `email` | [`String`](../scalar/string.md) | Email of the user |