Serverless Stack

also how do we now add this into the stack?

Hey <@U02U1FPDSUW> if u r asking how to do this in SST v1, try replacing
```auth.cognitoUserPool```
with
```auth.cdk.userPool```

Thanks. turns out what i wanted to do was this.

cdk: {
        userPool: {
          email: cognito.UserPoolEmail.withSES({
            sesRegion: 'us-east-2',
            fromEmail: '<mailto:noreply@a.com|noreply@a.com>,
            fromName: `${stack.stage.toLowerCase() === "prod" ? "" : stack.stage.toLowerCase()} Support`,
            replyTo: '<mailto:support@a.com|support@a.com>',
            sesVerifiedDomain: '<http://a.com|a.com>',
          }),
          deviceTracking: {
            challengeRequiredOnNewDevice: true,
            deviceOnlyRememberedOnUserPrompt: true,
          },
          _// Users can login with their email and password_
          signInAliases: {
            username: true,
            email: true,
          },
        },