WooCommerce Currency Converter Widget 2.2.4

* Tweak - Sanitize the cookie value before using it.
* Tweak - Tested compatibility up to WP 6.4

* Feature - Added own exchange provider as a fallback to Open Exchange Rates.
* Tweak - Dropped the default Open Exchange Rates App ID.
* Tweak - Updated the recommended privacy policy texts.
* Tweak - Updated plugin author.
* Tweak - Tested compatibility up to WC 8.2.
* Tweak - Tested compatibility up to WP 6.3.
* Dev - Changed the plugin namespace to `KoiLab\WC_Currency_Converter`.
* Dev - Updated the minimum requirements to WC 4.0, WP 5.0, and PHP 7.0.

* Tweak - Use a password field type for the 'App ID' setting.
* Tweak - Remove the API credentials on the plugin uninstall.
* Tweak - Tested compatibility with WC 7.6