test(nc-gui): fix user management flaky test (#9180)

tests/playwright/pages/Account/Users.ts

@@ -76,9 +76,11 @@ export class AccountUsersPage extends BasePage {
     // ensure page is loaded
     email = this.prefixEmail(email);
 
-    await this.get().locator('.nc-table-row').first().waitFor({ state: 'visible' });
+    const userRow = this.get().locator(`.nc-table-row:has-text("${email}")`).first();
 
-    return this.get().locator(`.nc-table-row:has-text("${email}")`).first();
+    await userRow.waitFor({ state: 'visible' });
+
+    return userRow.first();
   }
 
   async updateRole({ email, role }: { email: string; role: string }) {
@@ -103,5 +105,6 @@ export class AccountUsersPage extends BasePage {
     await this.rootPage.locator('.nc-menu-item:visible:has-text("Remove user")').click();
     await this.rootPage.locator('.ant-modal.active button:has-text("Delete User")').click();
     await this.verifyToast({ message: 'User deleted successfully' });
+    await this.get().locator(`.nc-table-row:has-text("${email}")`).first().waitFor({ state: 'hidden' });
   }
 }