use type from leaflet

Author: josh-willis-arcadis

lib/editor/util/map.js

@@ -1,7 +1,7 @@
 // @flow
 
 import ll from '@conveyal/lonlat'
-import {divIcon} from 'leaflet'
+import {Bounds, divIcon} from 'leaflet'
 import clone from 'lodash/cloneDeep'
 import fetch from 'isomorphic-fetch'
 import distance from '@turf/distance'