fix default open sidebar

Author: SaraVieira

packages/app/src/app/overmind/utils/items.ts

@@ -32,6 +32,7 @@ const FILES: INavigationItem = {
   id: 'files',
   name: 'Explorer',
   hasCustomHeader: true,
+  defaultOpen: true,
 };
 
 const GITHUB: INavigationItem = {
@@ -60,7 +61,6 @@ const LIVE: INavigationItem = {
 const SERVER: INavigationItem = {
   id: 'server',
   name: 'Server Control Panel',
-  defaultOpen: true,
 };
 
 export function getDisabledItems(store: any): INavigationItem[] {