Add tooltip for building blocks in header bar

src/ui/MainWindow.cpp

@@ -42,7 +42,7 @@ MainWindow::MainWindow(Simulation* sim, const std::string& configDir,
     setWindowTitle(tr("Dota Factory"));
     resize(1280, 768);
 
-    m_headerBar = new HeaderBar(this);
+    m_headerBar = new HeaderBar(&sim->config(), this);
 
     m_gameWorldView = new GameWorldView(sim, &sim->config(), &m_visuals, m_configDir,
                                         m_replay.get(), this);