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-front/src/modules/settings/roles/graphql/queries/getRolesQuery.ts

@@ -0,0 +1,18 @@
+import { WORKSPACE_MEMBER_QUERY_FRAGMENT } from '@/workspace-member/graphql/fragments/workspaceMemberQueryFragment';
+import { gql } from '@apollo/client';
+
+export const GET_ROLES = gql`
+  ${WORKSPACE_MEMBER_QUERY_FRAGMENT}
+  query GetRoles {
+    getRoles {
+      id
+      label
+      description
+      canUpdateAllSettings
+      isEditable
+      workspaceMembers {
+        ...WorkspaceMemberQueryFragment
+      }
+    }
+  }
+`;