[ld2450] Clean-up for consistency, reduce CPU usage when idle (#9363)

esphome/components/ld2450/button/factory_reset_button.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "esphome/components/button/button.h"
+#include "../ld2450.h"
+
+namespace esphome {
+namespace ld2450 {
+
+class FactoryResetButton : public button::Button, public Parented<LD2450Component> {
+ public:
+  FactoryResetButton() = default;
+
+ protected:
+  void press_action() override;
+};
+
+}  // namespace ld2450
+}  // namespace esphome