e2e tests (#16533)

In this PR, 
- current basic E2E tests are fixed, and some were added, covering some
basic scenarios
- some tests avec been commented out, until we decide whether they are
worth fixing

The next steps are
- evaluate the flakiness of the tests. Once they've proved not to be
flaky, we should add more tests + re-write the current ones not using
aria-label (cf @lucasbordeau indication).
- We will add them back to the development flow

packages/twenty-e2e-testing/tests/authentication/signup_invite_email.spec.ts

@@ -49,12 +49,10 @@ test('Sign up with invite link via email', async ({
     await leftMenu.goToSettings();
     await settingsPage.goToProfileSection();
     await profileSection.deleteAccount();
+    await expect(page.getByText('Account Deletion')).toBeVisible();
     await confirmationModal.typePlaceholderToInput();
+    await confirmationModal.clickConfirmButton();
 
-    await Promise.all([
-      page.waitForURL('/welcome'),
-
-      confirmationModal.clickConfirmButton(),
-    ]);
+    await page.waitForURL('**/welcome');
   });
 });