Multiple bug fixes

【Contents of the fix】
■Fixed a bug in the layout of the drop-down list of the widget “Archive List (tcd version)”.
■Updated page builder.
・【Firefox, IE】Fixed a bug that caused unstable display of Google map.
・Fixed the bug of switching editor 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.

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

【Modified file】
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