[Maps] Include maps styles in embeddables factory so that they're bun…

…dled w/ consuming plugins (#64460)

x-pack/plugins/maps/public/embeddable/map_embeddable_factory.ts

@@ -23,6 +23,7 @@ import { addLayerWithoutDataSync } from '../actions/map_actions';
 import { getQueryableUniqueIndexPatternIds } from '../selectors/map_selectors';
 import { getInitialLayers } from '../angular/get_initial_layers';
 import { mergeInputWithSavedMap } from './merge_input_with_saved_map';
+import '../index.scss';
 
 export class MapEmbeddableFactory implements EmbeddableFactoryDefinition {
   type = MAP_SAVED_OBJECT_TYPE;