Update for Flutter 3.10 beta (#1746)

## 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 updated/added relevant documentation (doc comments with `///`).
- [ ] All existing and new tests are passing.

---------

Co-authored-by: David Iglesias <ditman@gmail.com>
Co-authored-by: Mark Thompson <2554588+MarkTechson@users.noreply.github.com>
Co-authored-by: John Ryan <ryjohn@google.com>

platform_design/lib/song_detail_tab.dart

@@ -58,9 +58,8 @@ class SongDetailTab extends StatelessWidget {
           Expanded(
             child: ListView.builder(
               itemCount: 10,
-              itemBuilder: (context, index) {
-                if (index == 0) {
-                  return const Padding(
+              itemBuilder: (context, index) => switch (index) {
+                0 => const Padding(
                     padding: EdgeInsets.only(left: 15, top: 16, bottom: 8),
                     child: Text(
                       'You might also like:',
@@ -69,10 +68,8 @@ class SongDetailTab extends StatelessWidget {
                         fontWeight: FontWeight.w500,
                       ),
                     ),
-                  );
-                }
-                // Just a bunch of boxes that simulates loading song choices.
-                return const SongPlaceholderTile();
+                  ),
+                _ => const SongPlaceholderTile(),
               },
             ),
           ),