With many configurations the dialog body itself scrolled, taking the list toolbar (+ − copy …) out of view. The dialog body is now a flex column whose panes fill it: the configuration list and the form scroll on their own, the toolbar and footer stay visible, and the body's height is a preferred size that shrinks with the window or when the dialog is resized.
Co-authored-by: EjaYF <9842286+EjaYF@users.noreply.github.com>
