Add missing mixin to Search

Author: Conengmo

folium/plugins/search.py

@@ -3,14 +3,15 @@
 from branca.element import MacroElement
 
 from folium import Map
+from folium.elements import JSCSSMixin
 from folium.features import FeatureGroup, GeoJson, TopoJson
 from folium.plugins import MarkerCluster
 from folium.utilities import parse_options
 
 from jinja2 import Template
 
 
-class Search(MacroElement):
+class Search(JSCSSMixin, MacroElement):
     """
     Adds a search tool to your map.