Refactor client config (#529)

* Refactor client config

* Fix server tests

* Fix lint

server/src/core/client-config/client-config.entity.ts

@@ -0,0 +1,37 @@
+import { Field, ObjectType } from '@nestjs/graphql';
+
+@ObjectType()
+class AuthProviders {
+  @Field(() => Boolean)
+  google: boolean;
+
+  @Field(() => Boolean)
+  magicLink: boolean;
+
+  @Field(() => Boolean)
+  password: boolean;
+}
+
+@ObjectType()
+class Telemetry {
+  @Field(() => Boolean)
+  enabled: boolean;
+
+  @Field(() => Boolean)
+  anonymizationEnabled: boolean;
+}
+
+@ObjectType()
+export class ClientConfig {
+  @Field(() => AuthProviders, { nullable: false })
+  authProviders: AuthProviders;
+
+  @Field(() => Telemetry, { nullable: false })
+  telemetry: Telemetry;
+
+  @Field(() => Boolean)
+  demoMode: boolean;
+
+  @Field(() => Boolean)
+  debugMode: boolean;
+}