TF-3514 Detect base64 image to transfer it to cid attachment

Signed-off-by: dab246 <tdvu@linagora.com>

lib/features/composer/presentation/model/create_email_request.dart

@@ -38,6 +38,7 @@ class CreateEmailRequest with EquatableMixin {
   final MessageIdsHeaderValue? references;
   final SendingEmail? emailSendingQueue;
   final ScreenDisplayMode displayMode;
+  final Uri? uploadUri;
 
   CreateEmailRequest({
     required this.session,
@@ -64,7 +65,8 @@ class CreateEmailRequest with EquatableMixin {
     this.messageId,
     this.references,
     this.emailSendingQueue,
-    this.displayMode = ScreenDisplayMode.normal
+    this.displayMode = ScreenDisplayMode.normal,
+    this.uploadUri,
   });
 
   @override
@@ -94,5 +96,6 @@ class CreateEmailRequest with EquatableMixin {
     references,
     emailSendingQueue,
     displayMode,
+    uploadUri,
   ];
 }