Domain Names and Certificates for cloudfront

### Is this feature request related to a new or existing Amplify category?

hosting

### Is this related to another service?

Cloudfront

### Describe the feature you'd like to request

It would be nice if the flow for creating hosting included options for setting up certificates and domain names.

Domain names seems to be the easiest piece, just add Aliases in the template.

For certificates it would be ideal if you could just select the cert from a list of certs already in AWS...or alternately go through a flow to add/create one, or just open up the console to the correct page...

### Describe the solution you'd like

Improved flow

### Describe alternatives you've considered

It is possible to do this manually by changing the template.

### Additional context

_No response_

### Is this something that you'd be interested in working on?

- [ ] 👋 I may be able to implement this feature request

### Would this feature include a breaking change?

- [ ] ⚠️ This feature might incur a breaking change

Start by tracing the Amplify hosting flow and its CloudFront template configuration. Review how domain aliases and certificates are represented, then determine the intended certificate-selection or AWS-console path. Done means the hosting flow supports domain names and certificates without manual template edits.

Written by the indexing model from the issue text.