TF-1813 Add createTime and change type email property in SendingEmailHiveCache

(cherry picked from commit 3077cc3b414d4894ac13f5636aa5d59b0096c9fb)

lib/features/composer/domain/extensions/email_request_extension.dart

@@ -9,6 +9,7 @@ extension EmailRequestExtension on EmailRequest {
       sendingId: sendingId,
       email: email,
       emailActionType: emailActionType,
+      createTime: DateTime.now(),
       sentMailboxId: sentMailboxId,
       emailIdDestroyed: emailIdDestroyed,
       emailIdAnsweredOrForwarded: emailIdAnsweredOrForwarded,

lib/features/composer/domain/extensions/sending_email_extension.dart

@@ -1,4 +1,5 @@
 
+import 'package:model/extensions/email_extension.dart';
 import 'package:model/extensions/email_id_extensions.dart';
 import 'package:model/extensions/identity_id_extension.dart';
 import 'package:model/extensions/mailbox_id_extension.dart';
@@ -9,8 +10,9 @@ extension SendingEmailExtension on SendingEmail {
   SendingEmailHiveCache toHiveCache() {
     return SendingEmailHiveCache(
       sendingId,
-      email.toJson(),
+      email.asString(),
       emailActionType.name,
+      createTime,
       sentMailboxId?.asString,
       emailIdDestroyed?.asString,
       emailIdAnsweredOrForwarded?.asString,