This change replaces `getRenderablePermissionsDomains` with a new selector `getConnectedDomainsForSelectedAddress` that works better. The data returned from this selector is used to populated the _Connected Sites_ modal, which (as of #8262) didn't use most of the data returned from the old selector.
The old selector only looked at the first address that was exposed, making it not work for anything other than the first account connected to a particular origin.
Whymarrh Whitby