Make rooms in the room list bold when there's unread messages

This used to be a feature but kinda broke/changed when we switched to
focusing on context-aware or notable events. Basically instead of only
notable events making a room bold in the room list, it's any unread
messages now.

src/libneochat/models/roomlistmodel.cpp

@@ -119,7 +119,7 @@ void RoomListModel::connectRoomSignals(NeoChatRoom *room)
         refresh(room, {DisplayNameRole});
     });
     connect(room, &Room::unreadStatsChanged, this, [this, room] {
-        refresh(room, {ContextNotificationCountRole, HasHighlightNotificationsRole});
+        refresh(room, {ContextNotificationCountRole, HasHighlightNotificationsRole, NotificationCountRole});
     });
     connect(room, &Room::notificationCountChanged, this, [this, room] {
         refresh(room);
@@ -271,6 +271,9 @@ QVariant RoomListModel::data(const QModelIndex &index, int role) const
     if (role == IsDirectChat) {
         return room->isDirectChat();
     }
+    if (role == NotificationCountRole) {
+        return room->notificationCount();
+    }
 
     return QVariant();
 }
@@ -304,6 +307,7 @@ QHash<int, QByteArray> RoomListModel::roleNames() const
     roles[RoomIdRole] = "roomId";
     roles[IsChildSpaceRole] = "isChildSpace";
     roles[IsDirectChat] = "isDirectChat";
+    roles[NotificationCountRole] = "notificationCount";
     return roles;
 }