T3216
Upgrading the Alias UI to be a bit more prod-worthy and in anticipation of the need to separate Registered and Pending aliases. This diff introduces dropdowns and tags whereby within the Registered Aliases dropdown it renders the registered aliases into Tags, which can be clicked on to copy the alias to the clipboard.
This is also an efficient use of the UI real estate to avoid users having to scroll endlessly if they have registered a lot of aliases.
Tag color is aligned to branding guidelines.