Added wxEXPAND flag to Filament and SLA Materials pages
Added wxEXPAND flag to Filament and SLA Materials pages

prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r