Multiple bug fixes

【Contents of fixes】
■Fixed the display layout of the widget “Category List (tcd version)” when there are many articles.
■Changed the specification of the pager transition of the blog archive page in order to support the display under specific environment.
■Minor fixes to the page builder.

The following files have been modified for this update.
【Fixed files】
js/functions.js
pagebuilder/assets/admin/css/admin.css
pagebuilder/assets/admin/js/admin.js
pagebuilder/assets/admin/js/editor.js
pagebuilder/assets/admin/js/repeater.js
pagebuilder/assets/admin/js/slider.js
pagebuilder/pagebuilder.php
style.css
widget/category_list.php