style: style fixes by ruff and autoformatting by black

Author: lachlangrose

LoopStructural/modelling/features/fault/_fault_function.py

@@ -438,7 +438,7 @@ class BaseFault3D(object):
     fw.add_cstr(-1, 0)
     fw.add_grad(-1, 0)
     fw.add_min(-1)
-    
+
     gyf = smooth_peak
     # CubicFunction()
     # gyf.add_cstr(-1, 0)

LoopStructural/modelling/features/fault/_fault_segment.py

@@ -124,6 +124,7 @@ def displacementfeature(self):
     def fault_ellipsoid(self, **kwargs):
         try:
             import pyvista as pv
+
             if self.model is None:
                 pts = self.fault_centre[None, :]
             else: