Allow text to be typed in Fax TO: field in desktop app

You should not have to add a Contact before faxing. Right now, if you fax using a template and only a fax number, then the cover letter show nothing in the TO: line. I want to be able to have a separate "TO:" field and "Fax number" field, so my cover letter is not empty. Sometimes faxes are one time only and having to add a Contact also make the process slower.