Add action to search in room directory when search is empty in roomlist

src/publicroomlistmodel.cpp

@@ -111,9 +111,6 @@ void PublicRoomListModel::next(int count)
         return;
     }
 
-    if (!hasMore())
-        return;
-
     job = m_connection->callApi<QueryPublicRoomsJob>(m_server, count, nextBatch, QueryPublicRoomsJob::Filter {m_keyword});
 
     connect(job, &BaseJob::finished, this, [=] {