Price after vado discount is not rounded

Hello, @tonytheferg I found the problem with the approach of rounding price.

If the item price after the bundle discount application is 39.3757 we have 15 items in the cart. 39.3757 * 15 = 590.64 (590.6355). But if we will round the order item price it will be 39.38 which will lead to a total price of 38 * 15 = 590.70. Which is higher than should be.

From what I see Vado for the moment is not usable with PayPal. (And even with other payment gateways, because sending such a price 39.3757 through the API could lead to unexpected results)

The solution would be to apply adjustments to the total order item price, instead of the unit price.

We agreed that it's better to sell items using a bit lowest price, so clients will not be so angry. Here is a temporal patch. But the problem should be definitely fixed in another way.

39.3757 rounded should be 39.38.

https://git.drupalcode.org/project/commerce/-/blob/8.x-2.x/modules/price...