refactored code so change in bookmark count is visible immediately

lib/pages/collections_list_page.dart

@@ -21,7 +21,7 @@ class CollectionsListPage extends StatefulWidget {
 
 class _CollectionsListPageState extends State<CollectionsListPage> {
   bool addingNewBookmark = false;
-  final bookmarkCountMap = Storage.loadPerCollectionBookmarkCount();
+  var bookmarkCountMap = <int, int>{};
 
   Widget bottomSheetBuilder(BuildContext context) {
     final titleTextFieldController = TextEditingController(
@@ -84,8 +84,9 @@ class _CollectionsListPageState extends State<CollectionsListPage> {
   @override
   Widget build(BuildContext context) {
     final collections = Storage.loadCollections();
-    final provider = context.watch<SharedLinkProvider>();
-    addingNewBookmark = provider.currentMapsLinkMetadata != null;
+    bookmarkCountMap = Storage.loadPerCollectionBookmarkCount();
+    addingNewBookmark =
+        context.watch<SharedLinkProvider>().currentMapsLinkMetadata != null;
     return Scaffold(
       appBar: AppBar(
         title: addingNewBookmark
@@ -94,7 +95,8 @@ class _CollectionsListPageState extends State<CollectionsListPage> {
         actions: [
           if (addingNewBookmark)
             TextButton(
-              onPressed: () => provider.removeCurrentMapsLink(),
+              onPressed: () =>
+                  context.read<SharedLinkProvider>().removeCurrentMapsLink(),
               child: Text(AppLocalizations.of(context)!.cancel),
             )
           else