User Role Editor Pro 4.64.2

Fix: unfiltered_html enabled for multisite did not work when user saved content from Gutenberg. unfiltered_html activation code was not applied for WP REST API (AJAX) calls.
Update: Widgets admin access: It’s possible to use “Block not selected” access model to block widgets and sidebars which are not selected in the list.
Update: User Role Editor Pro uninstallation was refactored. It fully removes the (‘ure_%’) user capabilities from the user roles data and users meta.
Core version was updated to 4.55
Update: User Role Editor uninstallation was refactored. It fully removes the (‘ure_%’) user capabilities from the user roles data.

* Core version: 4.54
* Fix: Front-end menu access add-on:
* - Do not switch menu walker to custom one starting from WordPress version 5.4 as it natively supports 'wp_nav_menu_item_custom_fields' action.
* - Do not duplicate UI elements output in case 'wp_nav_menu_item_custom_fields' action is executed more than one time - (for example, by external code incompatible with WordPress 5.4).
* Core version was updated to 4.54:
* New: Quick filter hides capabilities, which do not contain search string
* Update: CSS enhancement: When site has many custom post types capabilities list section maximal height is limited by real height of the left side (capabilities groups) section, not by 720px as earlier.
* Fix: Empty list of capabilities (0/0) was shown for custom post types (CPT) which are defined with the same capability type as another CPT.
For example courses CPT from LearnDash plugin is defined with 'course' capability type (edit_courses, etc.) and other CPT from LearnDash were shown with 0/0 capabilities (lessons, topics, quizzes, certificates).

* Core version: 4.53.1
* Fix: bbPress roles UI elements, like "Forum role", "Change forum role to..." were empty due to fix made with version 44.55.1.