Fix RUF015 (next() instead of list comprehensions[0])

https://docs.astral.sh/ruff/rules/-iterable-allocation-for-first-element/

src/bonsai/bonsai/bim/module/model/slab.py

@@ -127,7 +127,7 @@ class DumbSlabGenerator:
     def create_slab(self):
         ifc_classes = ifcopenshell.util.type.get_applicable_entities(self.relating_type.is_a(), self.file.schema)
         # Standard cases are deprecated, so let's cull them
-        ifc_class = [c for c in ifc_classes if "StandardCase" not in c][0]
+        ifc_class = next(c for c in ifc_classes if "StandardCase" not in c)
 
         mesh = bpy.data.meshes.new("Dummy")
         obj = bpy.data.objects.new(tool.Model.generate_occurrence_name(self.relating_type, ifc_class), mesh)