Typo? catkit.gen.surface.SlabGenerator.make_symmetric() calls wrong function

[xyttyxy]

In surface.py on line 537 and 546 get_point_group() function call should be get_pointgroup, per definition in symmetry.py

[raulf2012]

I can confirm that this appears to be the case, and by simply manually replacing the method call in symmetry.py with the correct one (get_point_group --> get_pointgroup) everything works just fine