fea(workspaces): add disable-scroll config

resources/config

@@ -9,6 +9,7 @@
     "modules-right": ["pulseaudio", "network", "cpu", "memory", "battery", "clock"],
     // Modules configuration
     "sway/workspaces": {
+        // "disable-scroll": true,
         // "all-outputs": true,
         // "format-icons": {
         //     "1": "",

src/modules/sway/workspaces.cpp

@@ -105,8 +105,10 @@ void waybar::modules::sway::Workspaces::addWorkspace(Json::Value node)
     }
   });
   button.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
+  if (!config_["disable-scroll"].asBool()) {
     button.signal_scroll_event()
       .connect(sigc::mem_fun(*this, &Workspaces::handleScroll));
+  }
   box_.reorder_child(button, node["num"].asInt());
   if (node["focused"].asBool()) {
     button.get_style_context()->add_class("focused");