Dashboards: Add feature restore dashboards backend (#83131)

Co-authored-by: Sofia Papagiannaki <1632407+papagian@users.noreply.github.com>

pkg/services/sqlstore/searchstore/builder.go

@@ -66,6 +66,7 @@ func (b *Builder) buildSelect() {
 			dashboard_tag.term,
 			dashboard.is_folder,
 			dashboard.folder_id,
+			dashboard.deleted,
 			folder.uid AS folder_uid,
 		`)
 	if b.Features.IsEnabledGlobally(featuremgmt.FlagNestedFolders) {