TF-3349 Escape messages when forward and reply email

model/lib/extensions/email_address_extension.dart

@@ -27,6 +27,17 @@ extension EmailAddressExtension on EmailAddress {
     return '';
   }
 
+  String asFullStringWithLtGtCharacter() {
+    if (displayName.isNotEmpty && emailAddress.isNotEmpty) {
+      return '${displayName.capitalizeFirstEach} <$emailAddress>';
+    } else if (displayName.isNotEmpty) {
+      return displayName.capitalizeFirstEach;
+    } else if (emailAddress.isNotEmpty) {
+      return '<$emailAddress>';
+    }
+    return '';
+  }
+
   String get emailAddress => email ?? '';
 
   String get displayName => name ?? '';

model/lib/extensions/list_email_address_extension.dart

@@ -1,3 +1,4 @@
+import 'package:core/presentation/extensions/html_extension.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
 import 'package:model/mailbox/expand_mode.dart';
 import 'package:model/extensions/email_address_extension.dart';
@@ -27,6 +28,18 @@ extension SetEmailAddressExtension on Set<EmailAddress>? {
     return listEmail.isNotEmpty ? listEmail.join(', ') : '';
   }
 
+  String toEscapeHtmlString(String separator) {
+    if (this?.isNotEmpty != true) return '';
+
+    final listEmail = this
+      !.map((emailAddress) => emailAddress.asFullStringWithLtGtCharacter().escapeLtGtHtmlString())
+      .toList();
+
+    return listEmail.isNotEmpty ? listEmail.join(separator) : '';
+  }
+
+  String toEscapeHtmlStringUseCommaSeparator() => toEscapeHtmlString(', ');
+
   int numberEmailAddress() => this != null ? this!.length : 0;
 
   List<EmailAddress> filterEmailAddress(String emailAddressNotExist) {