Fetch roles in roles settings page (#10001)

## Context
Following the addition of the new Roles page, we are now fetching roles
from the DB thanks to this PR #9955

## Test
<img width="1136" alt="Screenshot 2025-02-04 at 14 46 21"
src="https://github.com/user-attachments/assets/2c55c4d0-ee51-47bb-8113-efce172a9365"
/>

---------

Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-server/src/engine/metadata-modules/permissions/permissions.service.ts

@@ -54,7 +54,7 @@ export class PermissionsService {
     }
 
     throw new PermissionsException(
-      `User does not have permission to update this setting: ${setting}`,
+      `User does not have permission to access this setting: ${setting}`,
       PermissionsExceptionCode.PERMISSION_DENIED,
     );
   }

packages/twenty-server/src/engine/metadata-modules/role/dtos/role.dto.ts

@@ -5,7 +5,7 @@ import { Relation } from 'typeorm';
 import { WorkspaceMember } from 'src/engine/core-modules/user/dtos/workspace-member.dto';
 import { UserWorkspaceRoleEntity } from 'src/engine/metadata-modules/role/user-workspace-role.entity';
 
-@ObjectType()
+@ObjectType('Role')
 export class RoleDTO {
   @Field({ nullable: false })
   id: string;