redesign dlgtrackinfo.ui - remove excessive group_layouts + loading cover_art on the right side
- It is very important that all fields have the same vertical spacing. I noticed that the only way to ensure it is drawing all fields in the same box_layout...
dlgtrackinfo - rescaling covers before insert as an icon of the pushbutton
- the qpushbutton will rescale just covers which are bigger than the icon bounds, so it is important rescale all of then to ensure that it will always use as much space as possible...