new: add support for flag emoji in proxy names

lib/utils/text_utils.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:hiddify/gen/fonts.gen.dart';
 import 'package:intl/intl.dart' as intl;
+import 'dart:io';
 
 extension TextAlignX on BuildContext {
   bool get isRtl => Directionality.of(this) == TextDirection.rtl;
@@ -27,3 +29,10 @@ extension TextEditingControllerX on TextEditingController {
     return text.textDirection;
   }
 }
+
+String getEmojiFont4Desktop() {
+  if (Platform.isLinux || Platform.isWindows) {
+    return FontFamily.emoji;
+  }
+  return "";
+}