✨(frontend) display email if no username

Fallback to email if no username is defined for logged user.

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to
 
 ### Added
 
+- ✨(frontend) display email if no username #562
 - 🧑‍💻(oidc) add ability to pull registration ID (e.g. SIRET) from OIDC #577
 
 ### Fixed

src/frontend/apps/desk/src/features/header/AccountDropdown.tsx

@@ -9,7 +9,7 @@ export const AccountDropdown = () => {
   const { t } = useTranslation();
   const { userData, logout } = useAuthStore();
 
-  const userName = userData?.name || t('No Username');
+  const userName = userData?.name || userData?.email || t('No Username');
   return (
     <DropButton
       button={

src/frontend/apps/desk/src/features/header/__tests__/AccountDropdown.test.tsx

@@ -40,7 +40,7 @@ describe('AccountDropdown', () => {
     });
 
     renderAccountDropdown();
-    expect(screen.getByText('No Username')).toBeInTheDocument();
+    expect(screen.getByText('test@example.com')).toBeInTheDocument();
   });
 
   it('opens the dropdown and shows logout button when clicked', async () => {