chore: bump dart sdk to 3.8 (#20355)

* chore: bump dart sdk to 3.8

* chore: make build

* make pigeon

* chore: format files

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/lib/widgets/asset_grid/group_divider_title.dart

@@ -30,13 +30,10 @@ class GroupDividerTitle extends HookConsumerWidget {
     final appSettingService = ref.watch(appSettingsServiceProvider);
     final groupBy = useState(GroupAssetsBy.day);
 
-    useEffect(
-      () {
-        groupBy.value = GroupAssetsBy.values[appSettingService.getSetting<int>(AppSettingsEnum.groupAssetsBy)];
-        return null;
-      },
-      [],
-    );
+    useEffect(() {
+      groupBy.value = GroupAssetsBy.values[appSettingService.getSetting<int>(AppSettingsEnum.groupAssetsBy)];
+      return null;
+    }, []);
 
     void handleTitleIconClick() {
       ref.read(hapticFeedbackProvider.notifier).heavyImpact();
@@ -59,9 +56,7 @@ class GroupDividerTitle extends HookConsumerWidget {
           Text(
             text,
             style: groupBy.value == GroupAssetsBy.month
-                ? context.textTheme.bodyLarge?.copyWith(
-                    fontSize: 24.0,
-                  )
+                ? context.textTheme.bodyLarge?.copyWith(fontSize: 24.0)
                 : context.textTheme.labelLarge?.copyWith(
                     color: context.textTheme.labelLarge?.color?.withAlpha(250),
                     fontWeight: FontWeight.w500,