config: add new Configuration class to simplify handling json config update api

src/animations/Power.h

@@ -1,5 +1,6 @@
 #pragma once
 #include <Figments.h>
+#include "../Config.h"
 
 class Power: public Figment, ConfigTaskMixin {
 public:
@@ -27,7 +28,7 @@ public:
         }
     }
 
-    void handleConfigChange(const InputEvent& event) override;
+    void handleConfigChange(const Configuration& config) override;
 
     void loop() override {
         ConfigTaskMixin::loop();