feat: Sync chat contacts across devices (#4953)

Sync chat contacts across devices for broadcast lists and groups. This needs the corresponding chat
to exist on other devices which is not the case for unpromoted groups, so it fails for them now but
it's only a warning and will work once creation of unpromoted groups is synchronised too.

src/receive_imf.rs

@@ -1923,21 +1923,7 @@ async fn apply_group_changes(
         }
 
         if new_members != chat_contacts {
-            let new_members_ref = &new_members;
-            context
-                .sql
-                .transaction(move |transaction| {
-                    transaction
-                        .execute("DELETE FROM chats_contacts WHERE chat_id=?", (chat_id,))?;
-                    for contact_id in new_members_ref {
-                        transaction.execute(
-                            "INSERT INTO chats_contacts (chat_id, contact_id) VALUES(?, ?)",
-                            (chat_id, contact_id),
-                        )?;
-                    }
-                    Ok(())
-                })
-                .await?;
+            chat::update_chat_contacts_table(context, chat_id, &new_members).await?;
             chat_contacts = new_members;
             send_event_chat_modified = true;
         }