WooCommerce Product Search 6.1.0

* WordPress 5.8 compatible.
* WooCommerce 5.2 compatible.
* Requires at least WordPress 5.5.
* Requires at least WooCommerce 4.9.

* Updated WPML / WooCommerce Multilingual compatibility to support untranslated products related to translated terms. Requires rebuilding the index to take effect.
* Solved links to translated taxonomy terms leading to 404s with WPML as they are not correctly recognized without the lang URL parameter.
* Improved the way live search field results are obtained to take appropriate variation-related results into account.
* Fixed locale-specific issues with searches not producing expected results when search terms contain accented characters. Rebuilding the index is recommended if such issues are present.

* Fixed PHP 8 deprecated notices in our term walker class due to required parameters following a parameter unnecessarily declared as optional.
* Fixed product taxonomies named using non-alphanumeric characters would not have their terms indexed.
* Fixed issues where terms with no related products should be shown, they were not included (requires rebuilding the index to take effect).
* Using specific Font Awesome solid (900) icon set to avoid clashes with the reduced icon set in its regular (400) icon set. Fixes issues with icons used in Storefront appearing incorrectly.
* Fixed filter reset not appropriately shown when filters are displayed as type "Select".
* Improved price slider UX with added support for touch events.