Release 3.47 (#2879)

Minor updates for release 3.47

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).


If you need help, consider asking for advice on the #hackers-devrel
channel on [Discord].

<!-- Links -->
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Style-guide-for-Flutter-repo.md
[CLA]: https://cla.developers.google.com/
[Discord]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Chat.md
[Contributors Guide]:
https://github.com/flutter/samples/blob/main/CONTRIBUTING.md
[changelog]: ../CHANGELOG.md

---------

Co-authored-by: Parker Lougheed <parlough@gmail.com>

date_planner/lib/event_detail.dart

@@ -88,7 +88,8 @@ class _EventDetailState extends State<EventDetail> {
                           onChanged: (value) => event.title = value,
                         ),
                       ),
-                    if (!widget.isEditing) Text(event.title, style: titleStyle),
+                    if (!widget.isEditing)
+                      Text(event.title, style: titleStyle),
                   ],
                 ),
                 const SizedBox(height: 12),

date_planner/lib/event_list.dart

@@ -16,7 +16,7 @@ class EventList extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Consumer<EventData>(
-      builder: (BuildContext context, EventData events, Widget? child) {
+      builder: (context, events, child) {
         return CupertinoPageScaffold(
           // TODO(mit-mit): Avoid having to pass nav bar manually.
           //