Fixed bugs and improved display setting specifications

【Contents of the fix】
■Added recommended article setting item to the post list screen > Quick Edit.
■Fixed a bug in which the content hidden behind the main content was visible when flicking down at the top of the page on iPhone.

The following are the files that have been modified for this update.
【Corrected files】
functions.php
mobile/style-mobile.css
style.css
【Added files】
quick_edit.php

For more information, please visit the download site for purchasers of SWEETY (tcd029).