Improve UI to manage multiple channels in Inboxes

Each individual team could be working with upwards of 50 customers, so when we are looking to link each client email domain to one shared inbox, the current UI makes it very difficult to manage and review.

Similarly for setting Rules, there is no way for us to expand and iew the full list of email domains we have included for each field.

Solution: Ideally we would also have a table to manage and display all the email addresses inserted into the field for visibility and easier to trouble shoot OR at least have a way to expand the field downwards so we can see better.