bump post-action delay to 1s for PhotoPrism indexer to catch up

200ms was too short - PhotoPrism's batch archive marks photos in the DB
but the search index (used by /api/v1/photos) updates asynchronously.
1s gives the indexer time to reflect the change before we invalidate
and refetch the timeline.

web/src/lib/components/timeline/BulkActionBar.svelte

@@ -129,7 +129,7 @@
 			const result = await fn();
 			if (bulk) {
 				doneBulk(bulk.doneLabel, bulk.ids);
-				await delay(200);
+				await delay(1000);
 			}
 			return result;
 		} catch (e) {