Add move endpoint into folder service (#58575)

* add move endpoint

* change signatures

pkg/services/folder/folderimpl/folder.go

@@ -376,9 +376,6 @@ func (s *Service) DeleteFolder(ctx context.Context, cmd *folder.DeleteFolderComm
 }
 
 func (s *Service) Move(ctx context.Context, cmd *folder.MoveFolderCommand) (*folder.Folder, error) {
-	// check the flag, if old - do whatever did before
-	//  for new only the store
-
 	foldr, err := s.Get(ctx, &folder.GetFolderQuery{
 		UID:   &cmd.UID,
 		OrgID: cmd.OrgID,