[Permissions][FE] Design followup 5 (#12793)

## Context
- We now display workspace member full name and email in role assignment
picker
- Replaced Forbidden by "Not shared" with lock icon
- Fix Disabled for Danger accent
- Fix avatar URL

<img width="575" alt="Screenshot 2025-06-23 at 16 38 56"
src="https://github.com/user-attachments/assets/08430bfe-29c4-4ac4-821c-9062dfad7150"
/>
<img width="756" alt="Screenshot 2025-06-23 at 16 21 36"
src="https://github.com/user-attachments/assets/c19f31bd-fe9d-415d-aa55-62fa3e228c49"
/>
<img width="373" alt="Screenshot 2025-06-23 at 17 13 08"
src="https://github.com/user-attachments/assets/e2f7878c-7c5a-40b4-a482-8e99292257c3"
/>
<img width="342" alt="Screenshot 2025-06-23 at 17 37 49"
src="https://github.com/user-attachments/assets/04169e85-14dd-4aed-bd71-7aefd601a894"
/>
<img width="434" alt="Screenshot 2025-06-23 at 17 37 35"
src="https://github.com/user-attachments/assets/7caf0967-c4dd-4d0f-90c8-259a85182b19"
/>

packages/twenty-front/src/modules/ui/theme/hooks/__tests__/useColorScheme.test.tsx

@@ -15,7 +15,7 @@ jest.mock('@/object-record/hooks/useUpdateOneRecord', () => ({
 
 const workspaceMember: Omit<
   WorkspaceMember,
-  'createdAt' | 'updatedAt' | 'userId' | 'userEmail'
+  'createdAt' | 'updatedAt' | 'userId'
 > = {
   __typename: 'WorkspaceMember',
   id: 'id',
@@ -25,6 +25,7 @@ const workspaceMember: Omit<
   },
   locale: 'en',
   colorScheme: 'System',
+  userEmail: 'userEmail',
 };
 
 describe('useColorScheme', () => {