Folders: Migrate getFolder API to app platform (#107617)

* Add /children endpoint

* Update folder client

* Add comment

* Add feature toggle

* Add new version of useFoldersQuery

* Error handling

* Format

* Rename feature toggle

* Remove options and move root folder constant

* Fix feature toggle merge

* Add feature toggle again

* Rename useFoldersQuery files

* Update API spec

* Fix test

* Add test

* Migrate delete folder button

* useGetFolderQueryFacade

* Use getFolder facade hook

* Recreate legacy getFolder from the APIs

* Fix imports

* Add comment

* Rename function

* Simulate virtual folders in the API client

* Translations

* Update test

* Move the hook out of the index file

* Fix undefined in test

* Better status combining

* Use real access api for virtual folders

* Add basic test for the hook

* Remove commented import

* Remove the access control api and use legacy api for it

* Update tests

* Moved delete folder into facade hook

* Remove namespace attribute from virtual folders

* go lint

---------

Co-authored-by: Clarity-89 <homes89@ukr.net>

pkg/registry/apis/folders/sub_access.go

@@ -4,15 +4,15 @@ import (
 	"context"
 	"net/http"
 
+	"github.com/grafana/grafana/pkg/services/apiserver/endpoints/request"
+	"github.com/grafana/grafana/pkg/services/folder"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apiserver/pkg/registry/rest"
 
 	folders "github.com/grafana/grafana/apps/folder/pkg/apis/folder/v1beta1"
 	"github.com/grafana/grafana/pkg/apimachinery/identity"
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
-	"github.com/grafana/grafana/pkg/services/apiserver/endpoints/request"
 	"github.com/grafana/grafana/pkg/services/dashboards"
-	"github.com/grafana/grafana/pkg/services/folder"
 )
 
 type subAccessREST struct {