New: Use _prime_post_caches() to boost speed of fetching child products.
Fix: Only add indent wrapping div to product name if it doesn't already exist. Prevent multiple sub-arrows from displaying when coupons fail.
Fix: Php 8 compat: Required parameter follows optional parameter.
Fix: Add margin reset to <figure> in single product page.
Dev: Add get_props_to_meta_keys() getter to data store class.