Multiple bug fixes

【Contents of the fix】
■Fixed a bug where the footer widget for smartphones was not displayed.
■For the top page, the slider and the content under the 3-point box, if there is no “Image for smartphone” setting, the image for PC will be applied to the smartphone.

The following are the files that have been modified for this update.
【Corrected files】
functions.php
footer.php
front-page.php
header.php
css/responsive.css
language/ja.po
language/ja.mp
style.css

For more information, please visit the SOURCE (tcd045) download site for purchasers.