Dashboards / Folders: delete related data (permissions, stars, tags, versions, annotations) when deleting a dashboard or a folder (#28826)

* Dashboard: delete related data when deleting a dashboard or a folder

* fix migrations order

* apply PR feedback

pkg/services/sqlstore/migrations/dashboard_acl.go

@@ -46,4 +46,7 @@ INSERT INTO dashboard_acl
 	`
 
 	mg.AddMigration("save default acl rules in dashboard_acl table", NewRawSqlMigration(rawSQL))
+
+	mg.AddMigration("delete acl rules for deleted dashboards and folders", NewRawSqlMigration(
+		"DELETE FROM dashboard_acl WHERE dashboard_id NOT IN (SELECT id FROM dashboard) AND dashboard_id != -1"))
 }