Various code cleanup.

app/Http/Controllers/ObjectGroup/DeleteController.php

@@ -61,6 +61,8 @@ class DeleteController extends Controller
      * Delete a piggy bank.
      *
      * @param ObjectGroup $objectGroup
+     *
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
      */
     public function delete(ObjectGroup $objectGroup)
     {
@@ -77,6 +79,7 @@ class DeleteController extends Controller
      * Destroy the piggy bank.
      *
      * @param ObjectGroup $objectGroup
+     * @return RedirectResponse
      */
     public function destroy(ObjectGroup $objectGroup): RedirectResponse
     {

app/Http/Controllers/ObjectGroup/EditController.php

@@ -61,6 +61,8 @@ class EditController extends Controller
      * Edit an object group.
      *
      * @param ObjectGroup $objectGroup
+     *
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
      */
     public function edit(ObjectGroup $objectGroup)
     {
@@ -80,6 +82,7 @@ class EditController extends Controller
      *
      * @param ObjectGroupFormRequest $request
      * @param ObjectGroup            $objectGroup
+     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
      */
     public function update(ObjectGroupFormRequest $request, ObjectGroup $objectGroup)
     {

app/Http/Controllers/ObjectGroup/IndexController.php

@@ -62,7 +62,7 @@ class IndexController extends Controller
     }
 
     /**
-     * @return Application|Factory|View
+     * @return Factory|\Illuminate\Contracts\View\View
      */
     public function index()
     {
@@ -75,7 +75,10 @@ class IndexController extends Controller
     }
 
     /**
+     * @param Request     $request
      * @param ObjectGroup $objectGroup
+     *
+     * @return \Illuminate\Http\JsonResponse
      */
     public function setOrder(Request $request, ObjectGroup $objectGroup)
     {