Show the current stock quantity available on product admin ui page

[giosueDelgado]

Is your feature request related to a problem? Please describe.

Before the 2.X version the stock quantity available was visible automatically. It is possible to add also this information?

Section where to add this on readonly information:

[dlhck]

Considering this when working on #2903

[michaelbromley]

I don't fully understand what is being asked for here. The screenshot shows that the stock level is 1. What information is missing?

[dlhck]

@michaelbromley they are only shown on the product variant page. It would be actually pretty nice to see a stock section with a summary on the product detail page.