CEC-4640: add bulk add to fleet (#384)

* refactor bulkactions component

* refactor bulk actions

* update dom tests

* add addToFleet hook

* make signal optional

* implement code splitting

* add deps

* remove test label

src/components/App/App.test.js

@@ -9,7 +9,6 @@ jest.mock("../../services/vehiclesAPI");
 jest.mock("../../services/superset");
 jest.mock("../../services/suppliersAPI");
 jest.mock("../../services/issueAPI");
-jest.mock("../TransformModal");
 
 import {
   act, cleanup, render,