Make timeline refresh also load new posts.

lib/controls/timeline/timeline_panel.dart

@@ -13,6 +13,18 @@ class TimelinePanel extends StatelessWidget {
 
   const TimelinePanel({super.key, required this.timeline});
 
+  Future<void> update(TimelineManager manager) async {
+    await manager.updateTimeline(
+      timeline,
+      TimelineRefreshType.refresh,
+    );
+
+    await manager.updateTimeline(
+      timeline,
+      TimelineRefreshType.loadNewer,
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     final manager = context
@@ -22,10 +34,7 @@ class TimelinePanel extends StatelessWidget {
     final items = manager.getTimeline(timeline);
     return RefreshIndicator(
       onRefresh: () async {
-        manager.updateTimeline(
-          timeline,
-          TimelineRefreshType.refresh,
-        );
+        update(manager);
         return;
       },
       child: items.isEmpty