Improvements to the product list view in the admin panel

hi,
i made a few small changes to the product list (/administrator/index.php?option=com_j2commerce&view=products) would be great to have something like this in j2commerce by default because with a lot of products it just makes daily work much easier. I added the featured switch. right now i can only change this from com_content or by opening the product, which doesnt make much sense.
I also added stock quantity so i can see straight away what is in stock without going to the inventory view. and i added a simple price input with save button. this way i can quickly change the price directly from the product list without opening and editing every product. i dont think it makes much sense to show the currency in the store admin, because its always the same anyway.

KK

https://piekielko.com/download/products.zip

i also improved price sorting for variable products. before they had no price on the product list, now they show prices from their child products. if child products have different prices, it shows a price range - of course these prices cant be edited directly from the product list.

By the way, in the product list under the sorting options, I noticed a bug in the filter_product_type category—there's no selection option for Flexivariable products.