Simplify if condition

src/dc_receive_imf.rs

@@ -836,7 +836,7 @@ async fn add_parts(
 
                 if is_mdn || is_location_kml {
                     is_hidden = true;
-                    if state == MessageState::InFresh || state == MessageState::InNoticed {
+                    if incoming {
                         state = MessageState::InSeen; // Set the state to InSeen so that precheck_imf() adds a markseen job after we moved the message
                     }
                 }