update UI

Author: teh-cmc

crates/viewer/re_data_ui/src/entity_db.rs

@@ -139,9 +139,10 @@ impl crate::DataUi for EntityDb {
                         * {}
                         * {}
 
-                        This compaction process is an ephemeral, in-memory optimization of the Rerun viewer.
-                        It will not modify the recording itself: use the `Save` command if you wish to persist \
-                        the compacted results, which will make future runs cheaper.\
+                        This compaction process is an ephemeral, in-memory optimization of the Rerun viewer.\
+                        It will not modify the recording itself: use the `Save` command of the viewer, or the \
+                        `rerun compact` CLI tool if you wish to persist the compacted results, which will make \
+                        future runs cheaper.
                         ",
                         re_format::format_uint(chunk_max_rows),
                         re_format::format_uint(chunk_max_rows_if_unsorted),