emit DC_EVENT_MSGS_NOTICED when a chat was answered on another device

src/chat.rs

@@ -1744,6 +1744,27 @@ pub async fn get_chat_msgs(
     }
 }
 
+pub(crate) async fn marknoticed_chat_if_older_than(
+    context: &Context,
+    chat_id: ChatId,
+    timestamp: i64,
+) -> Result<(), Error> {
+    if let Some(chat_timestamp) = context
+        .sql
+        .query_get_value(
+            context,
+            "SELECT MAX(timestamp) FROM msgs WHERE chat_id=?",
+            paramsv![chat_id],
+        )
+        .await
+    {
+        if timestamp > chat_timestamp {
+            marknoticed_chat(context, chat_id).await?;
+        }
+    }
+    Ok(())
+}
+
 pub async fn marknoticed_chat(context: &Context, chat_id: ChatId) -> Result<(), Error> {
     // "WHERE" below uses the index `(state, hidden, chat_id)`, see get_fresh_msg_cnt() for reasoning
     if !context