all_device_types_app: Fix the fan control clusters delegate and add comment.

examples/all_device_types_app/main/app_priv.h

@@ -141,7 +141,9 @@ esp_err_t app_driver_init();
 class FanDelegateImpl:public chip::app::Clusters::FanControl::Delegate
 {
 public:
-    FanDelegateImpl(uint16_t aEndpoint):Delegate(aEndpoint){}
+    // Constructor to match the base class design, however endpoint_id set here is not being using at all.
+    // FanControlDelegateInitCB sets the delegate on correct endpoint while initialization.
+    FanDelegateImpl():Delegate(chip::kInvalidEndpointId) {}
 
     chip::Protocols::InteractionModel::Status HandleStep(chip::app::Clusters::FanControl::StepDirectionEnum aDirection, bool aWrap, bool aLowestOff);
 };

examples/all_device_types_app/main/esp_matter_console_helpers.cpp

@@ -230,7 +230,7 @@ int create(uint8_t device_type_index)
         case ESP_MATTER_FAN: {
             esp_matter::endpoint::fan::config_t fan_config;
             #if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S3
-            static FanDelegateImpl fan_delegate(app_endpoint_id);
+            static FanDelegateImpl fan_delegate;
             fan_config.fan_control.delegate = &fan_delegate;
             #endif
             endpoint = esp_matter::endpoint::fan::create(node, &fan_config, ENDPOINT_FLAG_NONE, NULL);