Spring cleaning, part 2 (#813)

* Remove OData v2 show case: Genres TreeView
* Refactored bookstore and fiori services: consolidate routing and remove deprecated files
* Add Jest configuration file with silent mode enabled
* Refactor test files: streamline imports and remove redundant code
* Change price field type to Price for better clarity and precision
* Example for separation of concerns: access-control.cds

fiori/app/genres/webapp/Component.js

@@ -1,7 +0,0 @@
-sap.ui.define(["sap/suite/ui/generic/template/lib/AppComponent"], (AppComponent) =>
-  AppComponent.extend("genres.Component", {
-    metadata: {
-      manifest: "json",
-    },
-  })
-);