Fixed bugs and added multiple features

【Contents of fix】
■Fixed a bug that the date is displayed in a single vertical line when the calendar widget is displayed on a smartphone.
■Added OGP setting function to theme options – “Basic Settings” (Facebook/Twitter)
■Added link setting function to top slider.
■Updated quick tag configuration file.

The following files have been modified for this update.
【Modified files】
admin/theme-options.php
functions.php
header.php
index.php
languages/en.mo
languages/en.po
style.css

【Added files】
functions/ogp.php

※In addition to the above, the quick tag configuration file has also been updated.
 Please download and use them from the download URL.

For more information, please visit the download site for purchasers of Precious (tcd019).