Add custom scrollbar to sidepanel and torrent list

client/source/scripts/components/panels/Sidebar.js

@@ -1,6 +1,7 @@
 import React from 'react';
 
 import ClientStats from '../sidebar/TransferData';
+import CustomScrollbars from '../ui/CustomScrollbars';
 import SearchBox from '../forms/SearchBox';
 import SpeedLimitDropdown from '../sidebar/SpeedLimitDropdown';
 import StatusFilters from '../sidebar/StatusFilters';
@@ -9,13 +10,13 @@ import TrackerFilters from '../sidebar/TrackerFilters';
 class Sidebar extends React.Component {
   render() {
     return (
-      <div className="application__sidebar">
+      <CustomScrollbars className="application__sidebar" inverted={true}>
         <SpeedLimitDropdown />
         <ClientStats />
         <SearchBox />
         <StatusFilters />
         <TrackerFilters />
-      </div>
+      </CustomScrollbars>
     );
   }
 }