TF-1779 Fix logic of replacing dot in long email

(cherry picked from commit 24d306500325fc3f7b7901cf1936e46f8be6ccf3)

core/lib/presentation/extensions/string_extension.dart

@@ -1,4 +1,5 @@
 import 'package:core/utils/app_logger.dart';
+import 'package:flutter/material.dart';
 
 extension StringExtension on String {
 
@@ -38,4 +39,11 @@ extension StringExtension on String {
       return '';
     }
   }
+
+  String get withUnicodeCharacter {
+    return characters
+      .replaceAll(Characters(' '), Characters('\u{00A0}'))
+      .replaceAll(Characters('-'), Characters('\u{2011}'))
+      .toString();
+  }
 }