fix: using Arabic numbers instead of Urdu numbers in Arabic localization

lib/src/messages/languages/ar_msg.dart

@@ -19,7 +19,7 @@ class ArabicMessages extends Messages {
 
   /// Message for when the elapsed time is less than a minute.
   @override
-  String secsAgo(int seconds) => '${convertToUrduNumbers(seconds)} ثوان';
+  String secsAgo(int seconds) => '${convertToArabicNumbers(seconds)} ثوان';
 
   /// Message for when the elapsed time is about a minute.
   @override
@@ -31,7 +31,7 @@ class ArabicMessages extends Messages {
     if (minutes == 2) {
       return 'دقيقتين';
     }
-    return '${convertToUrduNumbers(minutes)} دقائق';
+    return '${convertToArabicNumbers(minutes)} دقائق';
   }
 
   /// Message for when the elapsed time is about an hour.
@@ -44,7 +44,7 @@ class ArabicMessages extends Messages {
     if (hours == 2) {
       return 'ساعتين';
     }
-    return '${convertToUrduNumbers(hours)} ساعات';
+    return '${convertToArabicNumbers(hours)} ساعات';
   }
 
   /// Message for when the elapsed time is about a day.
@@ -57,7 +57,7 @@ class ArabicMessages extends Messages {
     if (days == 2) {
       return 'يومين';
     }
-    return '${convertToUrduNumbers(days)} أيام';
+    return '${convertToArabicNumbers(days)} أيام';
   }
 
   /// Word separator to be used when joining the parts of the message.

lib/src/utils/utility.dart

@@ -24,6 +24,30 @@ String convertToUrduNumbers(int input) {
   return result;
 }
 
+/// Utility function [convertToArabicNumbers] to convert an English number
+/// into its Arabic numeral equivalent.
+/// The function takes an integer [input] and replaces its English digits
+/// (0-9) with corresponding Arabic digits.
+/// Example: 123 -> '١٢٣'
+String convertToArabicNumbers(int input) {
+  // List of English digits
+  const english = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
+
+  // List of corresponding Arabic digits
+  const arabic = ['٠', '١', '٢', '٣', '٤', '٥', '٦', '٧', '٨', '٩'];
+
+  // Convert the input number to a string
+  var result = input.toString();
+
+  // Replace each English digit with its Urdu counterpart
+  for (var i = 0; i < english.length; i++) {
+    result = result.replaceAll(english[i], arabic[i]);
+  }
+
+  // Return the result with Urdu digits
+  return result;
+}
+
 /// Helper method [formatMessage] to format a time message by combining the
 /// [prefix], [msg] (main message), and [suffix]. The method concatenates the
 /// non-empty parts of the message using the [Messages.wordSeparator()] to join them.