Multiple bug fixes

【Contents of the fix】
■Social Button Type 5 (Official Button) “Facebook Like Button” specification change support.
■Page builder has been updated.
・【Firefox、IE】Fixed a bug that caused unstable display of Google map.
・Fixed the problem of switching editors and adjusted CSS in WordPress 5.5.
・Fixed a bug that the checkbox of the block border was removed when duplicating a block.
・Fixed other minor bugs.
■Changed the specification of the line break of the top page free space.
(the line break is now reflected when using visual mode).
■Fixed a bug that the text size of the free space in the custom post “Menu” is not reflected in both PC and smartphone.
■【iPhone】Fixed an issue where the Share button in the fixed footer bar does not show the Hatena bookmark icon.
■SSL support for Google Custom Search widget
■Fixed a minor bug.

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

【Modified file】
css/footer-bar.css
css/sns-botton.css
front-page.php
functions/acceleration.php
functions/head.php
functions/menu_cf.php
functions/update_notifier.php
languages/ja.mo
languages/ja.po
pagebuilder/assets/admin/css/admin.css
pagebuilder/assets/admin/js/admin.js
pagebuilder/modules/googlemap.php
pagebuilder/modules/simple_table.php
pagebuilder/modules/slider.php
pagebuilder/pagebuilder.php
style.css
template-parts/footer-bar.php
template-parts/sns-btn-btm.php
template-parts/sns-btn-top.php
widget/google_search.php

【Added files】
img/common/hatenabookmark-logomark.svg