Add missing TS type in DetailsSidebar (#1062)

Summary:
Adds missing TS for Store type in `react-redux` `connect`, same as in other components.

## Changelog

Internal change: Typescript typings improved.
Pull Request resolved: https://github.com/facebook/flipper/pull/1062

Test Plan: Try to compile/do a type check.

Reviewed By: jknoxville

Differential Revision: D21256256

Pulled By: passy

fbshipit-source-id: 55dea7d40a6874e924983806a298301aeffa772f

desktop/app/src/chrome/DetailSidebar.tsx

@@ -12,6 +12,7 @@ import ReactDOM from 'react-dom';
 import Sidebar from '../ui/components/Sidebar';
 import {connect} from 'react-redux';
 import {toggleRightSidebarAvailable} from '../reducers/application';
+import {State as Store} from '../reducers';
 
 type OwnProps = {
   children: any;
@@ -64,8 +65,6 @@ class DetailSidebar extends React.Component<Props> {
   }
 }
 
-// @TODO: TS_MIGRATION
-type Store = any;
 export default connect<StateFromProps, DispatchFromProps, OwnProps, Store>(
   ({application: {rightSidebarVisible, rightSidebarAvailable}}) => ({
     rightSidebarVisible,