Moved showAccessStatus from UI to item config

Renamed item-page to item to make it generic

src/config/item-config.interface.ts

@@ -0,0 +1,9 @@
+import { Config } from './config.interface';
+
+export interface ItemConfig extends Config {
+  edit: {
+    undoTimeout: number;
+  };
+  // This is used to show the access status label of items in results lists
+  showAccessStatuses: boolean;
+}