windows recent transfer progressbaraction takes up whole width of menu

Windows menus have a ~40px (I didn't measure) column on the left for icons and then a separator line, then text. If you just use a regular qaction, it'll draw blank space if there's no icon, then the line, then your title after the line.

Our QWidgetaction subclass draws the whole width of the menu, and doesn't draw a separator.

So the progress bar items look strange next to the other items in the window, they don't line up.

The width can be fixed by tweaking the margin, but I'm not sure how to get the separator.