improve VRT spec

packages/app/src/components/Admin/Users/UserTable.jsx

@@ -184,7 +184,7 @@ class UserTable extends React.Component {
             <tbody>
               {adminUsersContainer.state.users.map((user) => {
                 return (
-                  <tr key={user._id}>
+                  <tr data-testid="user-table-tr" key={user._id}>
                     <td>
                       <UserPicture user={user} className="picture rounded-circle" />
                     </td>

packages/app/test/cypress/integration/2-basic-features/access-to-admin-page.spec.ts

@@ -99,6 +99,7 @@ context('Access to Admin page', () => {
   it('/admin/users is successfully loaded', () => {
     cy.visit('/admin/users');
     cy.getByTestid('admin-users').should('be.visible');
+    cy.getByTestid('user-table-tr').first().should('be.visible');
     cy.screenshot(`${ssPrefix}-admin-users`, { capture: 'viewport' });
   });