Fix graphiql explorer styles by sending graphiql_plugin_explorer_css_sri param to render_graphiql function of the GraphQlView (#1418) (#1460)

Author: mnasiri

graphene_django/views.py

@@ -167,6 +167,7 @@ def dispatch(self, request, *args, **kwargs):
                     subscriptions_transport_ws_sri=self.subscriptions_transport_ws_sri,
                     graphiql_plugin_explorer_version=self.graphiql_plugin_explorer_version,
                     graphiql_plugin_explorer_sri=self.graphiql_plugin_explorer_sri,
+                    graphiql_plugin_explorer_css_sri=self.graphiql_plugin_explorer_css_sri,
                     # The SUBSCRIPTION_PATH setting.
                     subscription_path=self.subscription_path,
                     # GraphiQL headers tab,