Multiple bug fixes

【Contents of the fixes】
■Fixed a bug in which the order of articles on the top page content builder “Special Features” and custom post “Special Features” list page was switched when viewed on a PC.
■Fixed a bug that prevented the use of “Product Category Compound Search” in the “Welcart Keyword Search” widget.

The following files have been modified for this update.
【Fixed files】
style.css
wc_templates/wc_search_page.php