fix ios selectionHandleColor

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/utils/theme_utils.dart

@@ -3,6 +3,7 @@ import 'package:PiliPlus/main.dart';
 import 'package:PiliPlus/utils/extension.dart';
 import 'package:PiliPlus/utils/storage_pref.dart';
 import 'package:flex_seed_scheme/flex_seed_scheme.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 abstract class ThemeUtils {
@@ -111,6 +112,9 @@ abstract class ThemeUtils {
           borderRadius: const BorderRadius.all(Radius.circular(4)),
         ),
       ),
+      cupertinoOverrideTheme: CupertinoThemeData(
+        selectionHandleColor: colorScheme.primary,
+      ),
     );
     if (isDark) {
       if (Pref.isPureBlackTheme) {