WooCommerce Smart Coupons 9.18.0

* New: Group coupons by category
* New: Tested upto WooCommerce 4.4.1 & WordPress 5.5
* Fix: 'Click to Copy' updating coupon
* Fix: Max discount not working
* Update: Link color in footer
* Update: Code improvements for admin CSS
* Developer: Hook 'wc_sc_before_shortcode_smart_coupons_html_start'
* Developer: Hook 'wc_sc_coupon_code_allowed_characters'
* Developer: Hook 'wc_sc_is_coupon_restriction_available'
* Update: POT file

* New: Tested upto WooCommerce 4.3.1
* New: Template for purchasing credit of any amount (on single product page)
* New: Template for acknowledgement email that is sent to the purchaser of the coupon
* Fix: Bulk generate or import process not working in multisite sometimes
* Fix: Store credit is unable to apply discount when the price on the store is exclusive of tax [WooCommerce AvaTax]
* Update: An option to ignore notice 'Coupon was used in another transaction, and coupon usage limit is reached'
* Update: POT file

New: Tested upto WooCommerce 4.3.0
Update: Feature to stop a running bulk generate/import coupon process
Update: Feature to auto-stop a running process when the bulk generate/import process gets stuck
Update: 2 additional attributes ‘is_email’ & ‘is_clickable’ for shortcode ‘smart_coupons’
Update: POT file
Dev: Additional arguments for function get_coupon_styles
Dev: Filter ‘wc_sc_shortcode_always_generate_coupon’