Show Alt Text in the Sitefinity Images Module Grid

Alternative Text is pretty much mandatory for images on the web, by default though, Sitefinity doesn't show this field (or provide a native sort method to find images missing it)

Quick fix to add it though

Just click on "Columns" and add a new "DataColumnElement"...set the fields to what you see below

Update 2020: This only applies to the OLD UI, not the new AdminUI