[PD] fix alignment in pocket dialog
[PD] fix alignment in pocket dialog

just a minor UI issue: when you decrease the width of the pocket dialog (e.g. because you have a small screen), the alignment of the widgets is lost. This PR fixes this by grouping the widgets in a grid.

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master