TF-1865: Modify sending email in composer when tap item and Long press item

(cherry picked from commit 5cfda1d92f38da9e5e4fab1413e6e52229a51639)

lib/features/email/presentation/controller/single_email_controller.dart

@@ -371,7 +371,7 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
     emailSupervisorController.popEmailQueue(success.emailCurrent?.id);
 
     emailSupervisorController.pushEmailQueue(EmailLoaded(
-      success.emailContents.toList(),
+      success.emailContents,
       success.emailContentsDisplayed.toList(),
       success.attachments.toList(),
       success.emailCurrent,
@@ -379,7 +379,7 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
 
     if (success.emailCurrent?.id == currentEmail?.id) {
       emailContents.value = success.emailContentsDisplayed.asHtmlString;
-      initialEmailContents = success.emailContents.asHtmlString;
+      initialEmailContents = success.emailContents;
       attachments.value = success.attachments;
 
       if (!BuildUtils.isWeb) {

lib/features/email/presentation/model/email_loaded.dart

@@ -3,7 +3,7 @@ import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:model/model.dart';
 
 class EmailLoaded with EquatableMixin {
-  final List<EmailContent> emailContents;
+  final String emailContents;
   final List<EmailContent> emailContentsDisplayed;
   final List<Attachment> attachments;
   final Email? emailCurrent;