Updated Correspondence Window

We have improved the look and feel of the correspondence window so that it is now more mobile friendly and also cleaner.

Some of the key changes:
– The editor toolbars are hidden by default
– Cc, Bcc, Reply-To, Attachments are hidden unless the field contains data or the link to show is clicked
– Much more useable now on small devices
– The correspondence history section also works better on small devices