[DSC-1902] enable edit and new menu sections for community and collections admin

Author: FrancescoMolinaro

src/app/menu.resolver.ts

@@ -318,7 +318,7 @@ export class MenuResolver implements Resolve<boolean> {
           id: 'new_item',
           parentID: 'new',
           active: false,
-          visible: isSiteAdmin,
+          visible: isSiteAdmin || isCommunityAdmin || isCollectionAdmin,
           model: {
             type: MenuItemType.ONCLICK,
             text: 'menu.section.new_item',