Fixed multiple bugs / WP5.1.1 compatible

【Contents of the fix】
■Added support for WordPress 5.1.1 (Gutenberg).
■Fixed a bug that the contents of two tabs are mixed up when you click another tab during the fade when switching the top page tab contents.
■Fixed a bug where the link destination of native ads would be the URL of the article displayed one above the ad instead of the URL set in the theme options when using the fixed page ranking template.
■Changed the site search function to include content created with Page Builder.
■Fixed a bug where “Display position of header bar (smartphone)” in Theme Options > Header was not reflected.
■Adjusted the wording of theme options.

The following are the files that have been modified for this update.
【Corrected files】
admin/theme-options.php
admin/inc/basic.php
admin/js/tcd_script.js
js/functions.js
language/ja.mo
language/ja.po
pagebuilder/pagebuilder.php
pagebuilder/assets/admin/css/admin.css
pagebuilder/assets/admin/js/admin.js
pagebuilder/assets/admin/js/editor.js
pagebuilder/assets/admin/js/googlemap.js
pagebuilder/assets/admin/js/repeater.js
pagebuilder/assets/admin/js/tab.js
pagebuilder/assets/css/googlemap.css
pagebuilder/assets/css/pagebuilder.css
pagebuilder/assets/css/slider.css
pagebuilder/assets/css/tab.css
pagebuilder/modules/catchcopy.php
pagebuilder/modules/editor.php
pagebuilder/modules/googlemap.php
pagebuilder/modules/headline.php
pagebuilder/modules/image.php
pagebuilder/modules/slider.php
pagebuilder/modules/tab.php
pagebuilder/modules/includes/slick.php
pagebuilder/modules/includes/theme_options.php
functions.php
page_ranking.php
responsive.css
style.css

【Added files】
pagebuilder/assets/admin/js/simple_table.js
pagebuilder/assets/admin/js/slider.js
pagebuilder/assets/css/simple_table.css
pagebuilder/assets/js/googlemap.js
pagebuilder/modules/simple_table.php