fix missing brackets

Author: JaGeo

crystal_toolkit/components/structure.py

@@ -55,8 +55,9 @@ class StructureMoleculeComponent(MPComponent):
     objects.
     """
 
-    available_bonding_strategies=frozendict{**{subcls.__name__: subcls for subcls in NearNeighbors.__subclasses__()}, 'LobsterNeighbors': LobsterNeighbors}
-
+    available_bonding_strategies=frozendict({**{subcls.__name__: subcls for subcls in NearNeighbors.__subclasses__()},
+                                             'LobsterNeighbors': LobsterNeighbors})
+    
     default_scene_settings = frozendict(
         extractAxis=True,
         # For visual diff testing, we change the renderer to SVG since this WebGL