Polylang Pro 3.6.4

* Fix empty languages displayed when Falang data are remaining in the database #1286
* Fix PHP warning on term_props #1288
* Fix blog page displayed in the customizer instead of the static front page when changing a setting #1289

* Fix incorrect site titles in My Site admin bar menu on multisites #1284
* Fix incorrect home url when using multiple domains or subdomain and a static front page #1285

* Pro: Adapt the submenu colors of the navigation language switcher block to WP 6.2
* Pro: Fix the dropdown setting in the navigation language switcher block
* Add Amharic, Aragonese and Spanish from Dominican Republic to the list of predefined languages #1248
* Fix a deprecated notice in WP 6.2 when using multiple domains without the Internationalization PHP extension (intl) #1245