[WooCommerce] Add to cart button doesn't work correctly with other WooCommerce based plugins.

[Alexandru-Teodorescu]

Because we changed the Add to cart button and did not add all the classes as before, some plugins' features based on the default WooCommerce button do not work.

For example, I had a ticket where the user wanted to add a hook to change the button functionality. (using the xforWooCommerce plugin)

I talked with Razvan, and from what I understand, we need to add the default WooCommerce button again.