[mob] Minor fix to reflect correct status for indexing

mobile/lib/events/embedding_updated_event.dart

@@ -1,3 +1,5 @@
 import "package:photos/events/event.dart";
 
 class EmbeddingUpdatedEvent extends Event {}
+
+class EmbeddingCacheUpdatedEvent extends Event {}

mobile/lib/services/machine_learning/semantic_search/semantic_search_service.dart

@@ -190,6 +190,7 @@ class SemanticSearchService {
     _logger.info(
       "Loading ${_cachedEmbeddings.length} took: ${(endTime.millisecondsSinceEpoch - startTime.millisecondsSinceEpoch)}ms",
     );
+    Bus.instance.fire(EmbeddingCacheUpdatedEvent());
     _logger.info("Cached embeddings: " + _cachedEmbeddings.length.toString());
   }
 
@@ -227,6 +228,7 @@ class SemanticSearchService {
         .getOwnedFileIDs(Configuration.instance.getUserID()!);
     final embeddedFileIDs =
         await EmbeddingsDB.instance.getFileIDs(_currentModel);
+
     uploadedFileIDs.removeWhere(
       (id) => embeddedFileIDs.contains(id),
     );

mobile/lib/ui/settings/machine_learning_settings_page.dart

@@ -228,13 +228,13 @@ class MagicSearchIndexStatsWidget extends StatefulWidget {
 class _MagicSearchIndexStatsWidgetState
     extends State<MagicSearchIndexStatsWidget> {
   IndexStatus? _status;
-  late StreamSubscription<EmbeddingUpdatedEvent> _eventSubscription;
+  late StreamSubscription<EmbeddingCacheUpdatedEvent> _eventSubscription;
 
   @override
   void initState() {
     super.initState();
     _eventSubscription =
-        Bus.instance.on<EmbeddingUpdatedEvent>().listen((event) {
+        Bus.instance.on<EmbeddingCacheUpdatedEvent>().listen((event) {
       _fetchIndexStatus();
     });
     _fetchIndexStatus();