Polylang Pro 3.6.4

* Pro: Fix redirect occuring for tags sharing the same slug as their translations
* Fix quick edit allowing to modify the language of the default category when it should not #1018

* Pro: Fix users with editor role not able to save or publish posts
* Pro: Fix FSE compatibility not loaded when the plugin Gütenberg is active
* Pro: Fix a fatal error occuring with Yoast SEO Premium
* Pro: Fix a fatal error with ACF when no language is defined

* Requires WP 5.6 as minimum version
* Pro: Add compatibility with the full site editing introduced in WP 5.9
* Pro: Add a language switcher block for the navigation block introduced in WP 5.9
* Pro: Add compatibility with the new gallery block introduced in WP 5.9
* Pro: Make the language switcher block available in the widget section of the customizer
* Pro: Fix wrong category when translating the latest block
* Pro: Fix the language switcher block when using the dropdown option
* Pro: Fix some edge cases with locale fallback
* Pro: Fix post template replacing the post content when duplicating a post
* Pro: Fix synchronization groups not correctly cleaned up when a language is deleted
* Pro: Fix incorrect sticky property when duplicating / synchronizing posts
* Pro: Fix "Page for posts" label after the page has been bulk translated
* Pro: Fix translated slug when the url includes a query string
* Pro: Synchronize ACF layout fields if a child field is synchronized or translatable
* Pro: Fix wrong field group translation displayed when using object cache with ACF
* Update plugin updater to 1.9.1
* Add compatibility with the block site title introduced in WP 5.9
* Add the list of wpml-config.xml files in the site health information
* Improve the performance of the get_pages() filter #980
* Improve the compatibility of 'wpml_object_id' with the original filter #972
* Prevent term_exists to be filtered by language in WP 6.0
* Fix some PHP 8.1 deprecations #949 #985
* Fix a fatal error in PHP 8.1 #987
* Fix category feed not redirected when the langage code is wrong #887
* Fix default category not created for secondary languages (introduced in 3.1) #997
* Fix parent page when the parent post type is not translatable #1001
* Fix the Yoast SEO breadcrumb when it includes a non-synchronized taxonomy #1005
* Fix a PHP Notice when adding a new language and Yoast SEO is active #979
* Fix a PHP warning in Yoast SEO compatibility #954