✅(e2e) add specific accounts for testing

This creates a bunch of accounts with various profiles
to allow testing in a specific "mode"

src/frontend/apps/e2e/__tests__/app-desk/language.spec.ts

@@ -10,22 +10,14 @@ test.describe('Language', () => {
   });
 
   test('checks the language picker', async ({ page }) => {
-    await expect(
-      page.getByRole('button', {
-        name: 'Create a new team',
-      }),
-    ).toBeVisible();
+    await expect(page.getByText('Groups')).toBeVisible();
 
     const header = page.locator('header').first();
     await header.getByRole('combobox').getByText('EN').click();
     await header.getByRole('option', { name: 'FR' }).click();
     await expect(header.getByRole('combobox').getByText('FR')).toBeVisible();
 
-    await expect(
-      page.getByRole('button', {
-        name: 'Créer un nouveau groupe',
-      }),
-    ).toBeVisible();
+    await expect(page.getByText('Groupes')).toBeVisible();
   });
 
   test('checks lang attribute of html tag updates when user changes language', async ({