Feature request: store passwords locally

[cwmoriarty]

This may have been requested before, but I'd love to extend the "In-Page Auto-Fill" feature to allow storing the iCloud password to the local browser password manager / CredentialsContainer.

I'd be great to do this in bulk, but one-at-a-time would be something awesome.

Probably something like:

cred = new PasswordCredential( {id:"cwm@cwmoriarty.com",password: "wh4tever-iCloud-Had-Stored", name:"https://website/"} );

await navigator.credentials.store(cred);