Update e2e tests for user and team billing

Updated end-to-end tests to adjust for changes in user and team billing. Changes include adding await for URL on user-billing.spec.ts and adjusting selectors in billing.po.ts and team-accounts.po.ts. Additionally, we updated test parameters on team-billing.spec.ts.

apps/e2e/tests/user-billing/user-billing.spec.ts

@@ -22,7 +22,9 @@ test.describe('User Billing', () => {
     await expect(po.billing.successStatus()).toBeVisible();
     await po.billing.returnToHome();
 
-    const link = page.locator('a', {
+    await page.waitForURL('http://localhost:3000/home');
+
+    const link = page.locator('button', {
       hasText: 'Billing'
     });