Fix Mesh Filter deformation axis UI layout

This uses a single row for the three axis instead of a row per axis.

Reviewed By: sergey, Severin

Differential Revision: https://developer.blender.org/D8581

release/scripts/startup/bl_ui/space_toolsystem_toolbar.py

@@ -1260,7 +1260,8 @@ class _defs_sculpt:
             props = tool.operator_properties("sculpt.mesh_filter")
             layout.prop(props, "type", expand=False)
             layout.prop(props, "strength")
-            layout.prop(props, "deform_axis")
+            row = layout.row(align=True)
+            row.prop(props, "deform_axis")
             layout.prop(props, "use_face_sets")
             if props.type == 'SURFACE_SMOOTH':
                 layout.prop(props, "surface_smooth_shape_preservation", expand=False)