This commit adds an 'Add To cart' snippet to the 'Web Editor'.
The snippet works as follow:
1. You choose the `product template` that you wish your users to buy.
2. If the product has more than 1 `variant`, a widget will offer you to either
let the visitor choose - this will open a modal for him to choose the variant
by himself - or select a variant yourself.
3. if `visitor choice` is not selected, a `buy_now` or `add_to_cart` action can
be configured; this will determine the behaviour of the button after the user
clicks it.
task-2824359
closesodoo/odoo#91882
Signed-off-by: William Braeckman (wbr) <wbr@odoo.com>
Co-authored-by: Morgane <morm@odoo.com>
