Specification changes / multiple bug fixes

【Contents of fix】
■Changed Facebook OGP setting from old specification (fb:admins) to new specification (fb:app_id).
※Please refer to the following article about how to get “fb:app_id” (application ID).
 How to get the fb:app ID required for Facebook OGP settings
■OGP tag optimization
■【macOS Big Sur】Fixed the bug that the YouTube video on the top page header content does not play in Chrome browser.
■【Mac】 Fixed an issue where the thickness of Japanese and European text may appear differently when using some fonts.

The following are the files that have been fixed in this update.

【Modified file】
admin/css/editor-style-02.css
admin/css/editor-style-02.min.css
admin/inc/basic.php
admin/theme-options.php
css/jquery.mb.YTPlayer.min.css
functions/head.php
functions/ogp.php
functions/seo.php
js/jquery.mb.YTPlayer.min.js
languages/ja.mo
languages/ja.po
pagebuilder/assets/css/pagebuilder.css
style.css