This commit allows to hide some more fields in the product card (e.g. you can hide SIZE but not WEIGHT).
To allow the product card to be customized a bit better, following new variables can be set to hide the corresponding fields:
PRODUCT_DISABLE_PUBLIC_URL
PRODUCT_DISABLE_STOCK_LEVELS
PRODUCT_DISABLE_NATURE
PRODUCT_DISABLE_WEIGHT
PRODUCT_DISABLE_PRICES
PRODUCT_DISABLE_ACCOUNTING
The documentation has to be adapted accordingly.