TF-2769 Remove stacktrace of exception from UI

lib/features/upload/domain/model/upload_attachment.dart

@@ -64,7 +64,7 @@ class UploadAttachment with EquatableMixin {
       if (e is DioError && e.type == DioErrorType.cancel) {
         _updateEvent(Left(CancelAttachmentUploadState(uploadTaskId)));
       } else {
-        _updateEvent(Left(ErrorAttachmentUploadState(uploadId: uploadTaskId, exception: e)));
+        _updateEvent(Left(ErrorAttachmentUploadState(uploadId: uploadTaskId)));
       }
     } finally {
       await _progressStateController.close();

lib/features/upload/presentation/controller/upload_controller.dart

@@ -280,7 +280,7 @@ class UploadController extends BaseController {
     if (currentContext != null && currentOverlayContext != null) {
       appToast.showToastErrorMessage(
         currentOverlayContext!,
-        '${AppLocalizations.of(currentContext!).can_not_upload_this_file_as_attachments}. ${failure.exception ?? ''}',
+        AppLocalizations.of(currentContext!).can_not_upload_this_file_as_attachments,
         leadingSVGIconColor: Colors.white,
         leadingSVGIcon: imagePaths.icAttachment);
     }