fix: add device message instead of partial message when receive_imf fails

src/download.rs

@@ -221,21 +221,14 @@ impl MimeMessage {
     /// To create the placeholder, only the outermost header can be used,
     /// the mime-structure itself is not available.
     ///
-    /// The placeholder part currently contains a text with size and availability of the message;
-    /// `error` is set as the part error;
-    /// in the future, we may do more advanced things as previews here.
+    /// The placeholder part currently contains a text with size and availability of the message.
     pub(crate) async fn create_stub_from_partial_download(
         &mut self,
         context: &Context,
         org_bytes: u32,
-        error: Option<String>,
     ) -> Result<()> {
-        let prefix = match error {
-            None => "",
-            Some(_) => "[❗] ",
-        };
         let mut text = format!(
-            "{prefix}[{}]",
+            "[{}]",
             stock_str::partial_download_msg_body(context, org_bytes).await
         );
         if let Some(delete_server_after) = context.get_config_delete_server_after().await? {
@@ -252,7 +245,6 @@ impl MimeMessage {
         self.do_add_single_part(Part {
             typ: Viewtype::Text,
             msg: text,
-            error,
             ..Default::default()
         });