LPS-41927 - On a small mobile device (width of 320 pixels), the buttons for Documents and Media extend beyond the portlet

Hey @natecavanaugh,

Attached is an update for http://issues.liferay.com/browse/LPS-41927.

NOTE: "The reason for giving the file input a width of 220px is because that's what default aui:input tags receive. It's pretty much making the width of the file input match the width of other inputs in the form." - @Robert-Frampton 

Please let me know if you have any questions.  Thanks!