GComboBox: Use a down-arrow (instead of an up-arrow) for the button

Libraries/LibGUI/GComboBox.cpp

@@ -20,7 +20,7 @@ GComboBox::GComboBox(GWidget* parent)
     };
     m_open_button = new GButton(this);
     m_open_button->set_focusable(false);
-    m_open_button->set_text("\xc3\xb6");
+    m_open_button->set_text("\xc3\xb7");
     m_open_button->on_click = [this](auto&) {
         if (m_list_window->is_visible())
             close();