Add SHORT SHORT LISTING TITLE to DEFAULT DESCRIPTIONS screen

First of all I love the new listing description flexibility and am making the most of its capability.

One small oversight.  

Information for the AIRBNB SHORT LISTING TITLE needs to be added to DEFAULT DESCRIPTIONS and then prepopulated into the AIRBNB LISTING TITLE.

Please consider adding that value to the DEFAULT DESCRIPTIONS.

Short Description is there, but not SHORT LISTING TITLE (50 char max)