do not auto-collapse menu on resize if previously manually opened
do not auto-collapse menu on resize if previously manually opened

ChristopherChudzicki/math3d,stardust66/math3d,ChristopherChudzicki/math3d,stardust66/math3d,ChristopherChudzicki/math3d,ChristopherChudzicki/math3d,stardust66/math3d,stardust66/math3d