No vitest in current create-sst as referenced in docs

[timkinnane]

The below seems incorrect for the current state of create-sst. There's no vitest config created and no test script in package.json.

sst/www/docs/testing.md

Lines 39 to 51 in 5caf568

	If you created your app with `create-sst` a [Vitest](https://vitest.dev/config/) config is added for you, with a test script in your `package.json`:
	```json {8} title="package.json"
	"scripts": {
	"dev": "sst dev",
	"build": "sst build",
	"deploy": "sst deploy",
	"remove": "sst remove",
	"console": "sst console",
	"typecheck": "tsc --noEmit",
	"test": "sst bind vitest run"
	},
	```