fix: refactor tests (#1066)

## Changes Made

- Refactor/optimise tests
- Reduce flakiness
- Add parallel tests (if there's enough CPU capacity)
- Removed explicit worker count when running parallel tests. Defaults to
50% of CPU capacity.

Might want to consider sharding the test across runners in the future as
our tests grows.

packages/app-tests/e2e/templates/manage-templates.spec.ts

@@ -108,7 +108,7 @@ test('[TEMPLATES]: delete template', async ({ page }) => {
     await page.getByRole('button', { name: 'Delete' }).click();
     await expect(page.getByText('Template deleted').first()).toBeVisible();
 
-    await page.waitForTimeout(1000);
+    await page.reload();
   }
 
   await unseedTeam(team.url);