Wire in new StatusAndRefreshButton and process into PostScreen

lib/screens/post_screen.dart

@@ -1,7 +1,11 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
+import '../controls/standard_appbar.dart';
+import '../controls/status_and_refresh_button.dart';
 import '../controls/timeline/post_control.dart';
+import '../globals.dart';
+import '../services/network_status_service.dart';
 import '../services/timeline_manager.dart';
 
 class PostScreen extends StatelessWidget {
@@ -17,25 +21,25 @@ class PostScreen extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final nss = getIt<NetworkStatusService>();
     final manager = context.watch<TimelineManager>();
     final body = manager.getPostTreeEntryBy(id).fold(
-        onSuccess: (post) => RefreshIndicator(
-              onRefresh: () async {
-                await manager.refreshStatusChain(id);
-              },
-              child: PostControl(
-                originalItem: post,
-                scrollToId: goToId,
-                openRemote: true,
-                showStatusOpenButton: true,
-                isRoot: true,
-              ),
+        onSuccess: (post) => PostControl(
+              originalItem: post,
+              scrollToId: goToId,
+              openRemote: true,
+              showStatusOpenButton: true,
+              isRoot: true,
             ),
         onError: (error) => Text('Error getting post: $error'));
     return Scaffold(
-        appBar: AppBar(
-          title: Text('View Post'),
-        ),
+        appBar: StandardAppBar.build(context, 'View Post', actions: [
+          StatusAndRefreshButton(
+            valueListenable: nss.timelineLoadingStatus,
+            refreshFunction: () async => await manager.refreshStatusChain(id),
+            busyColor: Theme.of(context).appBarTheme.foregroundColor,
+          ),
+        ]),
         body: Padding(
           padding: const EdgeInsets.all(8.0),
           child: body,