core: move to hyprutils for utils (#6385)

* core: move to hyprutils for utils

Nix: add hyprutils dep

* Meson: add hyprutils dep

* flake.lock: update

---------

Co-authored-by: Mihai Fufezan <mihai@fufexan.net>

src/helpers/signal/Signal.hpp

@@ -1,24 +1,5 @@
 #pragma once
 
-#include <functional>
-#include <any>
-#include <vector>
-#include <memory>
+#include <hyprutils/signal/Signal.hpp>
 
-#include "Listener.hpp"
-
-class CSignal {
-  public:
-    void emit(std::any data = {});
-
-    //
-    [[nodiscard("Listener is unregistered when the ptr is lost")]] CHyprSignalListener registerListener(std::function<void(std::any)> handler);
-
-    // this is for static listeners. They die with this signal.
-    // TODO: can we somehow rid of the void* data and make it a custom this?
-    void registerStaticListener(std::function<void(void*, std::any)> handler, void* owner);
-
-  private:
-    std::vector<WP<CSignalListener>>                    m_vListeners;
-    std::vector<std::unique_ptr<CStaticSignalListener>> m_vStaticListeners;
-};
+using namespace Hyprutils::Signal;